Package com.itextpdf.kernel.pdf

Class PdfDeveloperExtension

java.lang.Object
com.itextpdf.kernel.pdf.PdfDeveloperExtension
public class PdfDeveloperExtension extends Object
Beginning with BaseVersion 1.7, the extensions dictionary lets developers designate that a given document contains extensions to PDF. The presence of the extension dictionary in a document indicates that it may contain developer-specific PDF properties that extend a particular base version of the PDF specification. The extensions dictionary enables developers to identify their own extensions relative to a base version of PDF. Additionally, the convention identifies extension levels relative to that base version. The intent of this dictionary is to enable developers of PDF-producing applications to identify company-specific specifications that PDF-consuming applications use to interpret the extensions.

  • Field Details

    • ADOBE_1_7_EXTENSIONLEVEL3

      public static final PdfDeveloperExtension ADOBE_1_7_EXTENSIONLEVEL3
      An instance of this class for Adobe 1.7 Extension level 3.

    • ESIC_1_7_EXTENSIONLEVEL2

      public static final PdfDeveloperExtension ESIC_1_7_EXTENSIONLEVEL2
      An instance of this class for ETSI 1.7 Extension level 2.

    • ESIC_1_7_EXTENSIONLEVEL5

      public static final PdfDeveloperExtension ESIC_1_7_EXTENSIONLEVEL5
      An instance of this class for ETSI 1.7 Extension level 5.

    • ISO_32001

      public static final PdfDeveloperExtension ISO_32001
      An instance of this class for ISO/TS 32001.

    • ISO_32002

      public static final PdfDeveloperExtension ISO_32002
      An instance of this class for ISO/TS 32002.

    • prefix

      protected PdfName prefix
      The prefix used in the Extensions dictionary added to the Catalog.

    • baseVersion

      protected PdfName baseVersion
      The base version.

    • extensionLevel

      protected int extensionLevel
      The extension level within the base version.

  • Constructor Details

    • PdfDeveloperExtension

      public PdfDeveloperExtension (PdfName prefix, PdfName baseVersion, int extensionLevel)
      Creates a PdfDeveloperExtension object.
      Parameters:
      prefix - the prefix referring to the developer
      baseVersion - the number of the base version
      extensionLevel - the extension level within the base version

    • PdfDeveloperExtension

      public PdfDeveloperExtension (PdfName prefix, PdfName baseVersion, int extensionLevel, String url, String extensionRevision, boolean isMultiValued)
      Creates a PdfDeveloperExtension object.
      Parameters:
      prefix - the prefix referring to the developer
      baseVersion - the number of the base version
      extensionLevel - the extension level within the base version
      extensionRevision - the extension revision identifier
      url - the URL specifying where to find more information about the extension
      isMultiValued - flag indicating whether the extension prefix can have multiple values

  • Method Details

    • getPrefix

      public PdfName getPrefix()
      Gets the prefix name.
      Returns:
      a PdfName

    • getBaseVersion

      public PdfName getBaseVersion()
      Gets the baseVersion name.
      Returns:
      a PdfName

    • getExtensionLevel

      public int getExtensionLevel()
      Gets the extension level within the baseVersion.
      Returns:
      an integer

    • isMultiValued

      public boolean isMultiValued()
      Indicates whether the extension prefix is multivalued (ISO 32000-2:2020).
      Returns:
      true if multivalued

    • getDeveloperExtensions

      public PdfDictionary getDeveloperExtensions()
      Generations the developer extension dictionary corresponding with the prefix.
      Returns:
      a PdfDictionary