Namespace Org.Apache.Pdfbox.Pdmodel.Common.Function Classes PDFunction https://www.javadoc.io/doc/org.apache.pdfbox/pdfbox/3.0.4/org/apache/pdfbox/pdmodel/common/function/PDFunction.html PDFunctionType0 https://www.javadoc.io/doc/org.apache.pdfbox/pdfbox/3.0.4/org/apache/pdfbox/pdmodel/common/function/PDFunctionType0.html PDFunctionType2 https://www.javadoc.io/doc/org.apache.pdfbox/pdfbox/3.0.4/org/apache/pdfbox/pdmodel/common/function/PDFunctionType2.html PDFunctionType3 https://www.javadoc.io/doc/org.apache.pdfbox/pdfbox/3.0.4/org/apache/pdfbox/pdmodel/common/function/PDFunctionType3.html PDFunctionType4 https://www.javadoc.io/doc/org.apache.pdfbox/pdfbox/3.0.4/org/apache/pdfbox/pdmodel/common/function/PDFunctionType4.html PDFunctionTypeIdentity https://www.javadoc.io/doc/org.apache.pdfbox/pdfbox/3.0.4/org/apache/pdfbox/pdmodel/common/function/PDFunctionTypeIdentity.html