User Guide Cancel

cfimage

  1. CFML Reference User Guide
  2. ColdFusion functions
    1. ColdFusion functions by category
    2. Functions a-b
      1. Abs
      2. ACos
      3. AddSOAPRequestHeader
      4. AddSOAPResponseHeader
      5. AjaxLink
      6. AjaxOnLoad
      7. ApplicationStop
      8. ArrayAppend
      9. ArrayAvg
      10. ArrayClear
      11. ArrayContains
      12. ArrayContainsNoCase
      13. ArrayDelete
      14. ArrayDeleteAt
      15. ArrayDeleteNoCase
      16. ArrayEach
      17. ArrayFilter
      18. ArrayFind
      19. ArrayFindAll
      20. ArrayFindAllNoCase
      21. ArrayFindNoCase
      22. ArrayInsertAt
      23. ArrayIsDefined
      24. ArrayIsEmpty
      25. ArrayLen
      26. ArrayMap
      27. ArrayMax
      28. ArrayMin
      29. ArrayNew
      30. ArrayPrepend
      31. ArrayReduce
      32. ArrayResize
      33. ArraySet
      34. ArraySetMetadata
      35. ArraySlice
      36. ArraySort
      37. ArraySum
      38. ArraySwap
      39. ArrayToList
      40. Asc
      41. ASin
      42. Atn
      43. AuthenticatedContext
      44. AuthenticatedUser
      45. BinaryDecode
      46. BinaryEncode
      47. BitAnd
      48. BitMaskClear
      49. BitMaskRead
      50. BitMaskSet
      51. BitNot
      52. BitOr
      53. BitSHLN
      54. BitSHRN
      55. BitXor
      56. BooleanFormat
    3. Functions-c-d
      1. CacheGet
      2. CacheGetAllIds
      3. CacheGetMetadata
      4. CacheGetProperties
      5. CacheGetSession
      6. CacheIdExists
      7. CachePut
      8. CacheRegionExists
      9. CacheRegionNew
      10. CacheRegionRemove
      11. CacheRemove
      12. CacheRemoveAll
      13. CacheSetProperties
      14. CallStackDump
      15. CallStackGet
      16. CanDeSerialize
      17. Canonicalize
      18. CanSerialize
      19. Ceiling
      20. CharsetDecode
      21. CharsetEncode
      22. Chr
      23. CJustify
      24. Compare
      25. CompareNoCase
      26. Cos
      27. CreateDate
      28. CreateDateTime
      29. CreateObject
      30. CreateObject: .NET object
      31. CreateObject: COM object
      32. CreateObject: component object
      33. CreateObject: CORBA object
      34. CreateObject: Java or EJB object
      35. CreateObject: web service object
      36. CreateODBCDate
      37. CreateODBCDateTime
      38. CreateODBCTime
      39. CreateSignedJWT
      40. CreateEncryptedJWT
      41. CreateTime
      42. CreateTimeSpan
      43. CreateUUID
      44. CSRFGenerateToken
      45. CSRFVerifyToken
      46. DateAdd
      47. DateCompare
      48. DateConvert
      49. DateDiff
      50. DateFormat
      51. DatePart
      52. DateTimeFormat
      53. Day
      54. DayOfWeek
      55. DayOfWeekAsString
      56. DayOfYear
      57. DaysInMonth
      58. DaysInYear
      59. DE
      60. DecimalFormat
      61. DecodeForHTML
      62. DecodeFromURL
      63. DecrementValue
      64. Decrypt
      65. DecryptBinary
      66. DeleteClientVariable
      67. Deserialize
      68. DeserializeJSON
      69. DeserializeXML
      70. DirectoryCopy
      71. DirectoryCreate
      72. DirectoryDelete
      73. DirectoryExists
      74. DirectoryList
      75. DirectoryRename
      76. DollarFormat
      77. DotNetToCFType
      78. Duplicate
    4. Functions-e-g
      1. EncodeForCSS
      2. EncodeForDN
      3. EncodeForHTML
      4. EncodeForHTMLAttribute
      5. EncodeForJavaScript
      6. EncodeForLDAP
      7. EncodeForURL
      8. EncodeForXML
      9. EncodeForXMLAttribute
      10. EncodeForXpath
      11. Encrypt
      12. EncryptBinary
      13. EntityDelete
      14. EntityLoad
      15. EntityLoadByExample
      16. EntityLoadByPK
      17. EntityMerge
      18. EntityNew
      19. EntityReload
      20. EntitySave
      21. EntityToQuery
      22. Evaluate
      23. Exp
      24. ExpandPath
      25. FileClose
      26. FileCopy
      27. FileDelete
      28. FileExists
      29. FileGetMimeType
      30. FileIsEOF
      31. FileMove
      32. FileOpen
      33. FileRead
      34. FileReadBinary
      35. FileReadLine
      36. FileSeek
      37. FileSetAccessMode
      38. FileSetAttribute
      39. FileSetLastModified
      40. FileSkipBytes
      41. FileUpload
      42. FileUploadAll
      43. FileWrite
      44. FileWriteLine
      45. Find
      46. FindNoCase
      47. FindOneOf
      48. FirstDayOfMonth
      49. Fix
      50. Floor
      51. FormatBaseN
      52. GeneratePBKDFKey
      53. GenerateSecretKey
      54.  GetApplicationMetadata
      55. GetAuthUser
      56. GetBaseTagData
      57. GetBaseTagList
      58. GetBaseTemplatePath
      59. GetClientVariablesList
      60. GetComponentMetaData
      61. GetContextRoot
      62. GetCPUUsage
      63. GetCurrentTemplatePath
      64. GetDirectoryFromPath
      65. GetEncoding
      66. GetException
      67. GetFileFromPath
      68. GetFileInfo
      69. GetFreeSpace
      70. GetFunctionCalledName
      71. GetFunctionList
      72. GetGatewayHelper
      73. GetHttpRequestData
      74. GetHttpTimeString
      75. GetK2ServerDocCount
      76. GetK2ServerDocCountLimit
      77. GetLocale
      78. GetLocaleDisplayName
      79. GetLocalHostIP
      80. GetMetaData
      81. GetMetricData
      82. GetPageContext
      83. GetPrinterInfo
      84. GetPrinterList
      85. GetProfileSections
      86. GetProfileString
      87. GetReadableImageFormats
      88. GetSafeHTML
      89. GetSAMLAuthRequest
      90. GetSAMLLogoutRequest
      91. GenerateSAMLSPMetadata
      92. GetSOAPRequest
      93. GetSOAPRequestHeader
      94. GetSOAPResponse
      95. GetSOAPResponseHeader
      96. GetSystemFreeMemory
      97. GetSystemTotalMemory
      98. GetTempDirectory
      99. GetTempFile
      100. GetTemplatePath
      101. GetTickCount
      102. GetTimeZoneInfo
      103. GetToken
      104. GetTotalSpace
      105. GetUserRoles
      106. GetVFSMetaData
      107. GetWriteableImageFormats
    5. Functions-h-im
      1. Hash
      2. HMac
      3. Hour
      4. HQLMethods
      5. HTMLCodeFormat
      6. HTMLEditFormat
      7. IIf
      8. ImageAddBorder
      9. ImageBlur
      10. ImageClearRect
      11. ImageCopy
      12. ImageCreateCaptcha
      13. ImageCrop
      14. ImageDrawArc
      15. ImageDrawBeveledRect
      16. ImageDrawCubicCurve
      17. ImageDrawLine
      18. ImageDrawLines
      19. ImageDrawOval
      20. ImageDrawPoint
      21. ImageDrawQuadraticCurve
      22. ImageDrawRect
      23. ImageDrawRoundRect
      24. ImageDrawText
      25. ImageFlip
      26. ImageGetBlob
      27. ImageGetBufferedImage
      28. ImageGetEXIFMetadata
      29. ImageGetEXIFTag
      30. ImageGetHeight
      31. ImageGetIPTCMetadata
      32. ImageGetIPTCTag
      33. ImageGetMetadata
      34. ImageGetWidth
      35. ImageGrayscale
      36. ImageInfo
      37. ImageMakeColorTransparent
      38. ImageMakeTranslucent
      39. ImageNegative
      40. ImageNew
      41. ImageOverlay
      42. ImagePaste
      43. ImageRead
      44. ImageReadBase64
      45. ImageResize
      46. ImageRotate
      47. ImageRotateDrawingAxis
      48. ImageScaleToFit
      49. ImageSetAntialiasing
      50. ImageSetBackgroundColor
      51. ImageSetDrawingColor
      52. ImageSetDrawingStroke
      53. ImageSetDrawingTransparency
      54. ImageSharpen
      55. ImageShear
      56. ImageShearDrawingAxis
      57. ImageTranslate
      58. ImageTranslateDrawingAxis
      59. ImageWrite
      60. ImageWriteBase64
      61. ImageXORDrawingMode
    6. Functions-in-k
      1. IncrementValue
      2. InputBaseN
      3. Insert
      4. Int
      5. InvalidateOauthAccesstoken
      6. Invoke
      7. InitSAMLAuthRequest
      8. InitSAMLLogoutRequest
      9. InvokeCFClientFunction
      10. IsArray
      11. IsAuthenticated
      12. IsAuthorized
      13. IsBinary
      14. IsBoolean
      15. IsClosure
      16. IsCustomFunction
      17. IsDate
      18. IsDateObject
      19. IsDDX
      20. IsDebugMode
      21. IsDefined
      22. IsImage
      23. IsImageFile
      24. IsInstanceOf
      25. IsIPv6
      26. IsJSON
      27. IsK2ServerABroker
      28. IsK2ServerDocCountExceeded
      29. IsK2ServerOnline
      30. IsLeapYear
      31. IsLocalHost
      32. IsNull
      33. IsNumeric
      34. IsNumericDate
      35. IsObject
      36. isOnline
      37. IsPDFArchive
      38. IsPDFFile
      39. IsPDFObject
      40. IsProtected
      41. IsQuery
      42. isSamlLogoutResponse
      43. isSafeHTML
      44. IsSimpleValue
      45. IsSOAPRequest
      46. IsSpreadsheetFile
      47. IsSpreadsheetObject
      48. IsStruct
      49. IsUserInAnyRole
      50. IsUserInRole
      51. IsUserLoggedIn
      52. IsValid
      53. IsValidOauthAccesstoken
      54. IsWDDX
      55. IsXML
      56. IsXmlAttribute
      57. IsXmlDoc
      58. IsXmlElem
      59. IsXmlNode
      60. IsXmlRoot
      61. JavaCast
      62. JSStringFormat
    7. Functions-l
      1. LCase
      2. Left
      3. Len
      4. ListAppend
      5. ListChangeDelims
      6. ListContains
      7. ListContainsNoCase
      8. ListDeleteAt
      9. ListEach
      10. ListFilter
      11. ListFind
      12. ListFindNoCase
      13. ListFirst
      14. ListGetAt
      15. ListInsertAt
      16. ListLast
      17. ListLen
      18. ListMap
      19. ListPrepend
      20. ListQualify
      21. ListReduce
      22. ListRemoveDuplicates
      23. ListRest
      24. ListSetAt
      25. ListSort
      26. ListToArray
      27. ListValueCount
      28. ListValueCountNoCase
      29. LJustify
      30. Location
      31. Log
      32. Log10
      33. LSCurrencyFormat
      34. LSDateFormat
      35. LSDateTimeFormat
      36. LSEuroCurrencyFormat
      37. LSIsCurrency
      38. LSIsDate
      39. LSIsNumeric
      40. LSNumberFormat
      41. LSParseCurrency
      42. LSParseDateTime
      43. LSParseEuroCurrency
      44. LSParseNumber
      45. LSTimeFormat
      46. LTrim
    8. Functions-m-r
      1. Max
      2. Mid
      3. Min
      4. Minute
      5. Month
      6. MonthAsString
      7. Now
      8. NumberFormat
      9. ObjectEquals
      10. ObjectLoad
      11. ObjectSave
      12. OnWSAuthenticate
      13. ORMClearSession
      14. ORMCloseAllSessions
      15. ORMCloseSession
      16. ORMEvictCollection
      17. ORMEvictEntity
      18. ORMEvictQueries
      19. ORMExecuteQuery
      20. ORMFlush
      21. ORMFlushall
      22. ORMGetSession
      23. ORMGetSessionFactory
      24. ORMIndex
      25. ORMIndexPurge
      26. ORMReload
      27. ORMSearch
      28. ORMSearchOffline
      29. ParagraphFormat
      30. ParameterExists
      31. ParseDateTime
      32. Pi
      33. PrecisionEvaluate
      34. ProcessSAMLResponse
      35. ProcessSAMLLogoutRequest
      36. Quarter
      37. PreserveSingleQuotes
      38. QueryAddColumn
      39. QueryAddRow
      40. QueryConvertForGrid
      41. QueryExecute
      42. QueryFilter
      43. QueryGetResult
      44. QueryGetRow
      45. QueryKeyExists
      46. QueryMap
      47. QueryNew
      48. QueryReduce
      49. QuerySetCell
      50. QuotedValueList
      51. QueryEach
      52. Rand
      53. Randomize
      54. RandRange
      55. ReEscape
      56. REFind
      57. REFindNoCase
      58. ReleaseComObject
      59. REMatch
      60. REMatchNoCase
      61. RemoveCachedQuery
      62. RemoveChars
      63. RepeatString
      64. Replace
      65. ReplaceList
      66. ReplaceNoCase
      67. REReplace
      68. REReplaceNoCase
      69. RestDeleteApplication
      70. RestSetResponse
      71. RestInitApplication
      72. Reverse
      73. Right
      74. RJustify
      75. Round
      76. RTrim
    9. Functions-s
      1. Second
      2. SendGatewayMessage
      3. SendSAMLLogoutResponse
      4. Serialize
      5. SerializeJSON
      6. SerializeXML
      7. SessionInvalidate
      8. SessionRotate
      9. SessionGetMetaData
      10. SessionInvalidate
      11. SessionRotate
      12. SetDay
      13. SetEncoding
      14. SetHour
      15. SetLocale
      16. SetMonth
      17. SetProfileString
      18. SetVariable
      19. SetYear
      20. Sgn
      21. Sin
      22. Sleep
      23. SpanExcluding
      24. SpanIncluding
      25. SpreadsheetAddAutoFilter
      26. SpreadsheetAddColumn
      27. SpreadsheetAddFreezePane
      28. SpreadsheetAddImage
      29. SpreadsheetAddInfo
      30. SpreadsheetAddPageBreaks
      31. SpreadsheetAddRow
      32. SpreadsheetAddRows
      33. SpreadsheetAddSplitPane
      34. SpreadsheetCreateSheet
      35. SpreadsheetDeleteColumn
      36. SpreadsheetDeleteColumns
      37. SpreadsheetDeleteRow
      38. SpreadsheetDeleteRows
      39. SpreadsheetFormatCell
      40. SpreadsheetFormatColumn
      41. SpreadsheetFormatCellRange
      42. SpreadsheetFormatColumn
      43. SpreadsheetFormatColumns
      44. SpreadsheetFormatRow
      45. SpreadsheetFormatRows
      46. SpreadsheetGetCellComment
      47. SpreadsheetGetCellFormula
      48. SpreadsheetGetCellValue
      49. SpreadsheetGetColumnCount
      50. SpreadsheetInfo
      51. SpreadsheetMergeCells
      52. SpreadsheetNew
      53. SpreadsheetRead
      54. SpreadsheetReadBinary
      55. SpreadsheetRemoveSheet
      56. SpreadsheetSetActiveSheet
      57. SpreadsheetSetActiveSheetNumber
      58. SpreadsheetSetCellComment
      59. SpreadsheetSetCellFormula
      60. SpreadsheetSetCellValue
      61. SpreadsheetSetColumnWidth
      62. SpreadsheetSetFooter
      63. SpreadsheetSetHeader
      64. SpreadsheetSetRowHeight
      65. SpreadsheetShiftColumns
      66. SpreadsheetShiftRows
      67. SpreadsheetWrite
      68. Sqr
      69. StripCR
      70. StructAppend
      71. StructClear
      72. StructCopy
      73. StructCount
      74. StructDelete
      75. StructEach
      76. StructFilter
      77. StructFind
      78. StructFindKey
      79. StructFindValue
      80. StructGet
      81. StructGetMetadata
      82. StructInsert
      83. StructIsEmpty
      84. StructKeyArray
      85. StructKeyExists
      86. StructKeyList
      87. StructMap
      88. StructNew
      89. StructReduce
      90. StructSetMetadata
      91. StructSort
      92. StructToSorted
      93. StructUpdate
      94. StoreSetMetadata
      95. StoreGetACL
      96. StoreGetMetadata
      97. StoreAddACL
      98. StoreSetACL
    10. Functions-t-z
      1. Tan
      2. ThreadJoin
      3. ThreadTerminate
      4. Throw
      5. TimeFormat
      6. ToBase64
      7. ToBinary
      8. ToScript
      9. ToString
      10. Trace
      11. Transactionandconcurrency
      12. TransactionCommit
      13. TransactionRollback
      14. TransactionSetSavePoint
      15. Trim
      16. UCase
      17. URLDecode
      18. URLEncodedFormat
      19. URLSessionFormat
      20. Val
      21. ValueList
      22. VerifyClient
      23. Week
      24. Wrap
      25. WriteDump
      26. WriteLog
      27. WriteOutput
      28. WSGetAllChannels
      29. WSGetSubscribers
      30. WSPublish
      31. WSSendMessage
      32. XmlChildPos
      33. XmlElemNew
      34. XmlFormat
      35. XmlGetNodeType
      36. XmlNew
      37. XmlParse
      38. XmlSearch
      39. XmlTransform
      40. XmlValidate
      41. Year
      42. YesNoFormat
  3. ColdFusion Tags
    1. ColdFusion tag summary
    2. ColdFusion tags by category
      1. Application framework tags
        1. cfapplication
        2. cfassociate
        3. cferror
        4. cfimport
        5. cfinterface
        6. cflock
        7. cfscript
        8. cfthread
      2. Communications tags
        1. cfexchangecalendar
        2. cfexchangeconnection
        3. cfexchangecontact
        4. cfexchangefilter
        5. cfexchangemail
        6. cfexchangetask
        7. cffeed
        8. cfmail
        9. cfmailparam
        10. cfmailpart
        11. cfpopcfimap
      3. Database manipulation tags
        1. cfdbinfo
        2. cfinsert
        3. cfobjectcache
        4. cfprocparam
        5. cfprocresult
        6. cfquery
        7. cfqueryparam
        8. cfstoredproc
        9. cftransaction
        10. cfupdate
      4. Data output tags
        1. cfchart
        2. cfchartdata
        3. cfchartseries
        4. cfcol
        5. cfcontent
        6. cfdocument
        7. cfdocumentitem
        8. cfdocumentsection
        9. cfflush
        10. cfheader
        11. cflog
        12. cfoutput
        13. cfpresentation
        14. cfpresentationslide
        15. cfpresenter
        16. cfprocessingdirective
        17. cfprint
        18. cfreport
        19. cfreportparam
        20. cfsilent
        21. cftable
      5. Debugging tags
        1. cfdump
        2. cftimer
        3. cftrace
      6. Exception handling tags
        1. cfcatch
        2. cferror
        3. cffinally
        4. cfrethrow
        5. cfthrow
        6. cftry
      7. Extensibility tags
        1. cfchart
        2. cfchartdata
        3. cfchartseries
        4. cfcollection
        5. cfcomponent
        6. cfexecute
        7. cfftp
        8. function
        9. cfindex
        10. cfinterface
        11. cfinvoke
        12. cfinvokeargument
        13. cfobject
        14. cfproperty
        15. cfreport
        16. cfreportparam
        17. cfreturn
        18. cfsearch
        19. cfsharepoint
        20. cfspreadsheet
        21. cfwddx
        22. cfxml
      8. File management tags
        1. cfdirectory
        2. cffile
        3. cffileupload
        4. cfftp
        5. cfzip
        6. cfzipparam
      9. Flow-control tags
        1. cfabort
        2. cfbreak
        3. cfcase
        4. cfcontinue
        5. cfdefaultcase
        6. cfelse
        7. cfelseif
        8. cfexecute
        9. cfexit
        10. cfif
        11. cfinclude
        12. cflocation
        13. cfloop
        14. cfrethrow
        15. cfswitch
        16. cfthrow
        17. cftry
      10. Forms tags
        1. cfapplet
        2. cfcalendar
        3. cffileupload
        4. cfform
        5. cfformgroup
        6. cfformitem
        7. cfgrid
        8. cfgridcolumn
        9. cfgridrow
        10. cfgridupdate
        11. cfinput
        12. cfpdf
        13. cfpdfform
        14. cfpdfformparam
        15. cfpdfparam
        16. cfpdfsubform
        17. cfselect
        18. cfslider
        19. cftextarea
        20. cftree
        21. cftreeitem
      11. Internet Protocol tags
        1. cfajaximport
        2. cfajaxproxy
        3. cfftp
        4. cffeed
        5. cfimap
        6. cfhttp
        7. cfhttpparam
        8. cfldap
        9. cfmail
        10. cfmailparam
        11. cfmailpart
        12. cfpop
        13. cfsprydataset
      12. Page processing tags
        1. cfcache
        2. cfcontent
        3. cfflush
        4. cfheader
        5. cfhtmlhead
        6. cfinclude
        7. cfprocessingdirective
        8. cfsetting
        9. cfsilent
      13. Security tags
        1. cflogin
        2. cfloginuser
        3. cflogout
        4. cfNTauthenticate
      14. Variable manipulation tags
        1. cfcookie
        2. cfdump
        3. cfparam
        4. cfregistry
        5. cfsavecontent
        6. cfschedule
        7. cfset
        8. cfsetting
      15. Other tags
        1. cfimage
        2. cflog
        3. cfregistry
    3. Tags a-b
      1. cfabort
      2. cfajaximport
      3. cfajaxproxy
      4. cfapplet
      5. cfapplication
      6. cfargument
      7. cfassociate
      8. cfauthenticate
      9. cfbreak
    4. Tags c
      1. cfcache
      2. cfcalendar
      3. cfcase
      4. cfcatch
      5. cfchart
      6. cfchartdata
      7. cfchartseries
      8. cfclient
      9. cfclientsettings
      10. cfcol
      11. cfcollection
      12. cfcomponent
      13. cfcontent
      14. cfcontinue
      15. cfcookie
      16. Tags d-e
    5. Tags f
      1. cffeed
      2. cffile
      3. cffile action = "append"
      4. cffile action = "copy"
      5. cffile action = "delete"
      6. cffile action = "move"
      7. cffile action = "read"
      8. cffile action = "readBinary"
      9. cffile action = "rename"
      10. cffile action = "upload"
      11. cffile action = "uploadAll"
      12. cffile action = "write"
      13. cffileupload
      14. cffinally
      15. cfflush
      16. cfform
      17. cfformgroup
      18. cfformitem
      19. cfftp
      20. cfftp: Connection: file and directory operations
      21. cfftp: Opening and closing FTP server connections
      22. cfftp : Opening and closing secure FTP server connections
      23. cfftp action = "listDir"
      24. cffunction
    6. Tags g-h
      1. cfgraph
      2. cfgraphdata
      3. cfgrid
      4. cfgridcolumn
      5. cfgridrow
      6. cfgridupdate
      7. cfheader
      8. cfhtmlhead
      9. cfhtmltopdf
      10. cfhtmltopdfitem
      11. cfhttp
      12. cfhttpparam
    7. Tags i
      1. cfif
      2. cfimage
      3. cfimap
      4. cfimapfilter
      5. cfimpersonate
      6. cfimport
      7. cfinclude
      8. cfindex
      9. cfinput
      10. cfinsert
      11. cfinterface
      12. cfinvoke
      13. cfinvokeargument
    8. Tags j-l
      1. cfjava
      2. cflayout
      3. cflayoutarea
      4. cfldap
      5. cflocation
      6. cflock
      7. cflog
      8. cflogin
      9. cfloginuser
      10. cflogout
      11. cfloop
      12. cfloop : conditional loop
      13. cfloop : index loop
      14. cfloop : looping over a COM collection or structure
      15. cfloop : looping over a date or time range
      16. cfloop : looping over a list, a file, or an array
      17. cfloop : looping over a query
    9. Tags m-o
      1. cfmail
      2. cfmailparam
      3. cfmailpart
      4. cfmap
      5. cfmapitem
      6. cfmediaplayer
      7. cfmenu
      8. cfmenuitem
      9. cfmessagebox
      10. cfmodule
      11. cfNTauthenticate
      12. cfoauth
      13. cfobject
      14. cfobject: .NET object
      15. cfobject: COM object
      16. cfobject: component object
      17. cfobject: CORBA object
      18. cfobject: Java or EJB object
      19. cfobject: web service object
      20. cfobjectcache
      21. cfoutput
    10. Tags p-q
      1. cfparam
      2. cfpdf
      3. cfpdfform
      4. cfpdfformparam
      5. cfpdfparam
      6. cfpdfsubform
      7. cfpod
      8. cfpop
      9. cfpresentation
      10. cfpresentationslide
      11. cfpresenter
      12. cfprint
      13. cfprocessingdirective
      14. cfprocparam
      15. cfprocresult
      16. cfprogressbar
      17. cfproperty
      18. cfquery
      19. cfqueryparam
    11. Tags r-s
      1. cfregistry
      2. cfreport
      3. cfreportparam
      4. cfrethrow
      5. cfreturn
      6. cfsavecontent
      7. cfschedule
      8. cfscript
      9. cfsearch
      10. cfselect
      11. cfservlet
      12. cfservletparam
      13. cfset
      14. cfsetting
      15. cfsharepoint
      16. cfsilent
      17. cfslider
      18. cfspreadsheet
      19. cfsprydataset
      20. cfstoredproc
      21. cfswitch
    12. Tags t
      1. cftable
      2. cftextarea
      3. cftextinput
      4. cfthread
      5. cfthrow
      6. cftimer
      7. cftooltip
      8. cftrace
      9. cftransaction
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      6. cfzip
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      3. Scope-specific built-in variables
      4. Custom tag variables
      5. ColdFusion tag-specific variables
      6. CGI environment (CGI Scope) variables
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    10. ColdFusion Java CFX reference
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      2. Class libraries overview
      3. Custom tag interface
      4. Query interface
      5. Request interface
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      7. Debugging classes reference
    11. WDDX JavaScript Objects
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      3. WddxRecordset object
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  5. Cloud services
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    8. ColdFusion and MongoDB
    9. ColdFusion and Azure Blob
    10. ColdFusion and Azure Service Bus
    11. Multi-cloud storage services
    12. Multi-cloud RDS databases
    13. ColdFusion and Azure Cosmos DB

 

Description

Creates a ColdFusion image. You can use the cfimage tag to perform common image manipulation operations as a shortcut to Image functions. You can use the cfimage tag independently or in conjunction with Image functions.

History

ColdFusion 10: Added the attribute interpolation to {{cfimage action = "resize"}}

ColdFusion 8: Added this tag.

Category

Other tag

Syntax

Add a border to an image 
<cfimage 
required 
action = "border" 
source = "absolute pathname|pathname relative to the web root|URL|#cfimage variable#" 
optional 
color = "hexadecimal value|web color" 
destination = "absolute pathname|pathname relative to the web root" 
isBase64 = "yes|no" 
name = "cfimage variable" 
overwrite = "yes|no" 
thickness = "number of pixels"> 

Create a CAPTCHA image 
<cfimage 
required 
action = "captcha" 
height = "number of pixels" 
text = "text string" 
width = "number of pixels" 
optional 
destination = "absolute pathname|pathname relative to the web root" 
difficulty = "high|medium|low" 
overwrite = "yes|no" 
fonts = "comma-separated list of font names" 
fontSize = "point size"> 

Convert an image file format 
<cfimage 
required 
action = "convert" 
destination = "absolute pathname|pathname relative to the web root" 
source = "absolute pathname|pathname relative to the web root"|URL|#cfimage variable# 
optional 
isBase64 = "yes|no" 
name = "cfimage variable" 
overwrite = "yes|no"> 

Retrieve information about an image 
<cfimage 
required 
action = "info" 
source = "absolute pathname|pathname relative to the web root|URL|#cfimage variable#" 
structname = "structure name" 
optional 
isBase64 = "yes|no"> 

Read an image into memory 
<cfimage 
required 
name = "cfimage variable" 
source = "absolute pathname|pathname relative to the web root|URL|#cfimage variable#" 
optional 
action = "read" 
isBase64 = "yes|no"> 

Resize an image 
<cfimage 
required 
action = "resize" 
height = "number of pixels|percent%" 
source = "absolute pathname|pathname relative to the web root|URL|#cfimage variable#" 
width = "number of pixels|percent%" 
optional 
destination = "absolute pathname|pathname relative to the web root" 
isBase64 = "yes|no" 
name = "cfimage variable" 
overwrite = "yes|no"> 
interpolation = "interpolation algorithm" 

Rotate an image 
<cfimage 
required 
action = "rotate" 
angle = "angle in degrees" 
source = "absolute pathname|pathname relative to the web root|URL|#cfimage variable#" 
optional 
destination = "absolute pathname|pathname relative to the web root" 
isBase64= "yes|no" 
name = "cfimage variable" 
overwrite = "yes|no"> 

Write an image to a file 
<cfimage 
required 
action = "write" 
destination = "absolute pathname|pathname relative to the web root" 
source = "absolute or relative pathname|URL|#cfimage variable#" 
optional 
isBase64= "yes|no" 
overwrite = "yes|no" 
quality = "JPEG image quality"> 

Write an image to the browser 
<cfimage 
required 
action = "writeToBrowser" 
source = "absolute pathname|pathname relative to the web root|URL|#cfimage variable#" 
optional 
format = "png|jpg|jpeg" 
isBase64= "yes|no">
Note:

You can specify this tag's attributes in an attributeCollection attribute whose value is a structure. Specify the structure name in the attributeCollection attribute and use the tag's attribute names as structure keys.

See also

Attributes

Attribute

Action

Req/Opt

Default

Description

action

N/A

Optional

read

Action to take. Must be one of the following:

  • border
  • captcha
  • convert
  • info
  • read
  • resize
  • rotate
  • write
  • writeToBrowser
    The default action is read, which you do not need to specify explicitly.

angle

rotate

Required

 

Angle in degrees to rotate the image.Specify an integer for the value.

color

border

Optional

black

Border color.Hexadecimal value or supported named color; see the name list in Valid HTML named colors section. For a hexadecimal value, use the form "##xxxxxx" or "xxxxxx", where x = 0-9 or A-F; use two number signs or none.

destination

border captcha 
convert 
resizerotate 
write

Optional (see Description)

 

Absolute or relative pathname where the image output is written. The image format is determined by the file extension.
The convert and write actions require a destination attribute. The border, captcha, resize, and rotateactions require a name attribute or a destination attribute. You can specify both. ColdFusion supports only CAPTCHA images in PNG format.
Where the CAPTCHA image is placed depends on the following:

  • If destination is specified, image is written to the file (based on the absolute or relative pathname you specify).
  • If name is specified, image is written to the image variable.
  • If neither destination nor name is specified, image is written to the browser.

difficulty

captcha

Optional

low

Level of complexity of the CAPTCHA text. Specify one of the following levels of text distortion:

  • low
  • medium
  • high

fonts

captcha

Optional

 

One or more valid fonts to use for the CAPTCHA text. Separate multiple fonts with commas. If the specified font is not available, falls back to system fonts.

fontSize

captcha

Optional

24

Font size of the text in the CAPTCHA image.
The value must be an integer.

format

writeToBrowser

Optional

PNG

Format of the image displayed in the browser. If you do not specify a format, the image is displayed in PNG format.
You cannot display a GIF image in a browser. GIF images are displayed in PNG format.

height

captcha resize

Required

 

Height in pixels of the image.
For the resize attribute, you also can specify the height as a percentage (an integer followed by the percent (%)symbol).
When you resize an image, if you specify a value for the width, you can let ColdFusion calculate the aspect ratio by specifying "" as the height.
If specified, the value must be an integer.

inter
polation

resize

Optional

highest
Quality

Specify a specific interpolation algorithm by name (for example, hamming), by image quality (for example,mediumQuality), or by performance (for example, highestPerformance). The following are the valid values:

  • highestQuality
  • highQuality
  • mediumQuality
  • highestPerformance
  • highPerformance
  • mediumPerformance
  • nearest
  • bilinear
  • bicubic
  • bessel
  • blackman
  • hamming
  • hanning
  • hermite
  • lanczos
  • mitchell
  • quadratic

isBase64

border 
convert 
info 
read 
resizerotate 
writewrite
ToBrowser

Optional

no

Specifies whether the source is a Base64 string:

  • yes: the source is a Base64 string.
  • no: the source is not a Base64 string.

name

border
convertread
resizerotate

Optional
(see Description)

 

Name of the ColdFusion image variable to create.
The read action requires a name attribute.
The border, resize, and rotate actions require a name attribute or a destination attribute. You can specify both.

overwrite

border
captcha
conver
tread
resizerotate
write

Optional

no

Valid only if the destination attribute is specified. The overwrite values are:

  • yes: overwrites the destination file.
  • no: does not overwrite the destination file.
    If the destination file exists, ColdFusion generates an error if the overwrite action is not set to yes.

quality

write

Optional

0.75

Quality of the JPEG destination file. Applies only to files with an extension of JPG or JPEG. Valid values are fractions that range from 0 through 1 (the lower the number, the lower the quality).

source

border 
convert 
info 
read 
resizerotate 
write 
write
ToBrowser

Required

 

  • URL of the source image; for example, "{{ http://www.google.com/images/logo.gif }}"
  • Absolute pathname or a pathname relative to the web root; for example: "c:\images\logo.jpg"
  • ColdFusion image variable containing another image, BLOB, or byte array; for example, "#myImage#"
  • Base64 string; for example, "data:image/jpg;base64,/9j/4AAQSkZJRgABAQA.............."

struct
Name

info

Required

 

Name of the ColdFusion structure to be created.

text

captcha

Required

 

Text string displayed in the CAPTCHA image. Use capital letters for better readability. Do not include spaces because users cannot detect them in the resulting CAPTCHA image.

thickness

border

Optional

1

Border thickness in pixels. The border is added to the outside edge of the source image, increasing the image area accordingly.
The value must be an integer.

width

captcha 
resize

Required

 

Width in pixels of the image.
For resize, you also can specify the width as a percentage (an integer followed by the % symbol).
When you resize an image, if you specify a value for the height, you can let ColdFusion calculate the aspect ratio by specifying "" as the width.
If specified, the value must be an integer.

Usage

ColdFusion provides the cfimage tag and the ColdFusion image, a construct native to ColdFusion that contains image data. You can manipulate ColdFusion images in memory and write them to a file, a database, or directly to a browser. You use the cfimage tag to create ColdFusion images from existing image files and perform simple image actions, such as rotating or resizing. Alternatively, you can use theImageNew function to create a ColdFusion image from the beginning or from an existing image. You can use the Image functions to perform complex image manipulation operations on ColdFusion images that you create with the cfimage tag or with the ImageNew function.
You can perform the following tasks with ColdFusion images:

  • Convert an image from one file format to another. For example, you can convert a BMP file to a JPEG file or a Base64 string to a GIF.
  • Enforce consistent sizes on files uploaded to the server.
  • Enforce size limits on JPEG images (by changing the quality of the image).
  • Save a ColdFusion image to a file or write the image directly to a browser.
  • Use the ImageGetBlob function within the cfquery tag to insert a ColdFusion image as a Binary Large Object Bitmap (BLOB) in a database. Also, you can extract a BLOB from a database and generate a ColdFusion image from it.
  • Create watermark images.
  • Create thumbnail images.
  • Create a Completely Automated Public Turing test to tell Computers and Humans Apart (CAPTCHA) image, a distorted text image that is human-readable, but not machine-readable, used in a challenge-response test for preventing spam.
    For more detailed examples, see Creating and Manipulating ColdFusion Images in the Developing ColdFusion Applications.

File attributes

Use the following syntax to specify an in-memory file, which is not written to disk in the destination and source attributes. In-memory files speed processing of transient data.

ram:///filepath

The filepath can include directories, for example ram:///petStore/images/poodle.jpg. Create the directories in the path before you specify the file. For more information on using in-memory files, see Working with in-memory files in Optimizing ColdFusion applications in the Developing ColdFusion Applications.

Supported image file formats

The cfimage tag operates on a number of different file formats. To list the formats that are supported on the server where the ColdFusion application is deployed, use the GetReadableImageFormats function and the GetWriteableImageFormats function.ColdFusion supports the following default image formats on Macintosh, Windows, and Unix operating systems:

  • JPEG
  • GIF
  • TIFF
  • PNG
  • BMP
    ColdFusion does not support the following image formats:
  • Animated GIF
  • Multipage TIFF
  • PSD
  • AI

CMYK support

The cfimage tag supports reading and writing CMYK images, but does not support actions that require converting the images. For example, you can use CMYK images with the read, write, writeToBrowser, resize, rotate, and info actions. You cannot use CMYK images with the convert, captcha, and border actions. The same rule applies to image functions. For example, the ImageNew, ImageRead, and ImageWrite functions support CMYK images, but the ImageAddBorder function does not.

Valid HTML named colors

The following table lists the W3C HTML 4 named color value or hexadecimal values that the color attribute accepts:

Color name

RGB value

Black

##000000

Blue

##0000FF

Red

##FF0000

Gray

##808080

LightGray

##D3D3D3

DarkGray

##A9A9A9

Green

##008000

Pink

##FFC0CB

Cyan

##00FFFF

Magenta

##FF00FF

Orange

##FFA500

White

##FFFFFF

Yellow

##FFFF00

For all other color values, enter the hexadecimal value. Enter a six-digit value, which specifies the RGB value. Values between 00 and FF are allowed.

Image quality

By default, the cfimage tag generates images with antialiasing turned on (to remove the appearance of jagged edges). The interpolation method is set to highestQuality: this produces a high-quality image, but decreases processing speed. To turn off antialiasing, use the ImageSetAntialiasing function. To change the interpolation method or for more control over image attributes, use the following functions:

  • border action Use the border action to create a rectangular border around the outer edge of an image. You can control the thickness of the border and its color. For more control, use the ImageAddBorder function. The following example shows how to set the thickness and color of a border:

<!--- This example shows how to create a ColdFusion image from an existing JPEG file, add a
five-pixel-wide red border to the image, and save it to a new JPEG file. --->
<cfimage source="../cfdocs/images/artgallery/jeff05.jpg" action="border" thickness="5"
destination="jeff05.jpg" color="red" overwrite="yes">
  • captcha action Use the captchaaction to create a distorted text image that is human-readable but not machine-readable. When you create a CAPTCHA image, you specify the text that is displayed in the CAPTCHA image; ColdFusion randomly distorts the text. You can specify the height and width of the text area, which affects the spacing between letters, the font size, the fonts used for the CAPTCHA text, and the level of difficulty, which affects readability. The following example shows how to write a CAPTCHA image directly to the browser:
<cfimage action="captcha" fontSize="25" width="400" height="150" text="rEadMe"
fonts="Arial,Verdana,Courier New">
Note:
For the CAPTCHA image to display, the width value must be greater than: fontSize times the number of characters specified in text times 1.08. In this example, the minimum width is 162.

ColdFusion supports CAPTCHA images in PNG format only.

Use unique names for the CAPTCHA image files so that when multiple users access the CAPTCHA images, the files are not overwritten.

The following example shows how to create CAPTCHA images with a medium level of difficulty that are written to files:

<!--- Use the GetTickCount function to generate unique names for the CAPTCHA files. --->
<cfset tc = GetTickCount()> 
<cfimage action="captcha" fontSize="15" width="180" height="50" text="rEadMe"
destination="images/rEadMe#tc#.png" difficulty="medium">

For a detailed example, see the Creating and Manipulating ColdFusion Images in the Developing ColdFusion Applications.

  • convert action Use the convertaction to convert an image from one file format to another. For more information on file formats, see the section Supported image file formats. The following example shows how to convert a JPEG file to a PNG file:
<!--- This example shows how to convert a JPEG image to a PNG image. --->
<cfimage source="../cfdocs/images/artgallery/aiden02.jpg" action="convert"
destination="aiden02.png">
Note:

Converting images between one file format to another is time-consuming. Also, image quality can degrade; for example, PNG images support 24-bit color, but GIF images support only 256 colors. Converting transparent images (images with alpha) can degrade image quality.

  • info action Use the info action to create a ColdFusion structure that contains information about the image, including the color model, height, width, and source of the image. The structure is the same as returned by the ImageInfo function. The following example shows how to retrieve all of the information about an image:
<!--- This example shows how to retrieve and display image information. --->
<cfimage source="../cfdocs/images/artgallery/viata03.jpg" action="info" structName="viatoInfo"> 
<cfdump var="#viatoInfo#"> 
 
<!--- Alternatively, you can use the cfoutput tag to display specific image information, as 
shown in the following example. --->
<cfoutput> 
<p>height: #viatoInfo.height# pixels</p> 
<p>width: #viatoInfo.width# pixels</p> 
<p>source: #viatoInfo.source#</p> 
<p>transparency: #viatoInfo.colormodel.transparency#</p> 
<p>pixel size: #viatoInfo.colormodel.pixel_size#</p> 
<p>color model: #viatoInfo.colormodel.colormodel_type#</p> 
<p>alpha channel support: #viatoInfo.colormodel.alpha_channel_support#</p> 
<p>color space: #viatoInfo.colormodel.colorspace#</p> 
</cfoutput>
  • read action Use the read action to read an image from the specified local file pathname or URL, and create a ColdFusion image in memory. You can use the ColdFusion image variable as the source for another cfimage tag or for Image functions. The read action performs the same operation as the ImageRead function. The following example shows how to create a ColdFusion image from a JPEG file and manipulate it using the ImageGrayscalefunction:
<!--- This code shows how to create a ColdFusion image from a JPEG file. 
--->
<cfimage source="../cfdocs/images/artgallery/jeff01.jpg" name="myImage"> 
<!--- This code shows how to convert the image to grayscale. --->
<cfset ImageGrayscale(myImage)> 
<!--- This code shows how to write the grayscale image to a JPEG file. --->
<cfimage source="#myImage#" action="write" destination="myGrayscaleImage.jpg" overwrite="yes">
  • resize action Use the resizeaction to resize an image to the specified height and width. You can specify the height and width in pixels or as a percentage:
<!--- This example shows how to specify the height and width of an image in pixels. --->
<cfimage source="../cfdocs/images/artgallery/jeff01.jpg" action="resize" width="100" height="100" destination="jeff01_thumbnail.jpg" overwrite="yes"> 
<!--- This example shows how to specify the height and width of an image as percentages. --->
<cfimage source="../cfdocs/images/artgallery/jeff02.jpg" action="resize"
width="50%" height="50%" destination="jeff02_thumbnail.jpg" overwrite="yes"> 
<!--- This example shows how to specify the height of an image in pixels and its width as a 
percentage. --->
<cfimage source="../cfdocs/images/artgallery/jeff03.jpg" action="resize"
width="50%" height="100" destination="jeff03_thumbnail.jpg" overwrite="yes">

For more control of resize attributes, use the ImageResize function.

  • rotate action Use the rotateaction to rotate an image by degrees:

<!--- This example shows how to rotate an image by 30 degrees. --->
<cfimage source="../cfdocs/images/artgallery/maxwell01.jpg" action="rotate" angle="30"
name="maxwellAngle"> 
<!--- Display the rotated image in a browser. --->
<cfimage source="#maxwellAngle#" action="writeToBrowser">

For more control of the rotate attributes, use the ImageRotate function.

  • write action Use the write action to write an image to the specified path. The new image is converted to the file type specified in the destination attribute. The write action performs the same operation as the ImageWrite function. When you write an image to a JPEG file, the image quality is set to 75% of the original image by default. To control the image size, use the quality attribute of the write action.
    You can use the write action to change the quality of a JPEG image to reduce file size. The following example shows how to change image quality to .5:
<!--- This example shows how to create a PNG file from a JPEG file by using the write action. --->
<cfimage source="../cfdocs/images/artgallery/aiden01.jpg" action="write"
destination="aiden01.png"> 
<!--- This example shows how to create a low-quality JPEG image. --->
<cfimage source="../cfdocs/images/artgallery/jeff05.jpg" action="write"
destination="jeff05_lq.jpg" quality=".5"> 
<!--- This example shows how to write a JPEG file to a new location. --->
<cfimage source="../cfdocs/images/artgallery/jeff05.jpg" action="write"
destination="jeff05.jpg">
  • writeToBrowser action Use the writeToBrowseraction to display one or more ColdFusion images directly to the browser without writing them to files. Images are displayed in PNG format. The following example shows how to reduce the size of an image and display it in the browser:
<!--- This example shows how to create a ColdFusion image from a JPEG file, resize it, and 
then display it in the browser as a PNG image. --->
<cfimage source="../cfdocs/images/artgallery/jeff05.jpg" action="resize"
width="50%" height="50%" name="smLogo"> 
<cfimage source="#smLogo#" action="writeToBrowser">

Example

This example shows how to create a ColdFusion image and manipulate it by using Image functions:

<!--- Create the ColdFusion image variable "myImage" from a JPEG file. --->
<cfimage source="../cfdocs/images/artgallery/jeff05.jpg" name="myImage"> 
<!--- Pass the ColdFusion image to the Image functions to blur the image by a radius of 5, 
flip the image 90 degrees, and convert the image to grayscale. --->
<cfset ImageBlur(myImage,5)> 
<cfset ImageFlip(myImage,"90")> 
<cfset ImageGrayscale(myImage)> 
<!--- Write the transformed image to a browser. --->
<cfimage source="#myImage#" action="writeToBrowser">

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