Namespace Org.Apache.Pdfbox.Pdmodel.Interactive.Measurement Classes PDMeasureDictionary https://www.javadoc.io/doc/org.apache.pdfbox/pdfbox/3.0.4/org/apache/pdfbox/pdmodel/interactive/measurement/PDMeasureDictionary.html PDNumberFormatDictionary https://www.javadoc.io/doc/org.apache.pdfbox/pdfbox/3.0.4/org/apache/pdfbox/pdmodel/interactive/measurement/PDNumberFormatDictionary.html PDRectlinearMeasureDictionary https://www.javadoc.io/doc/org.apache.pdfbox/pdfbox/3.0.4/org/apache/pdfbox/pdmodel/interactive/measurement/PDRectlinearMeasureDictionary.html PDViewportDictionary https://www.javadoc.io/doc/org.apache.pdfbox/pdfbox/3.0.4/org/apache/pdfbox/pdmodel/interactive/measurement/PDViewportDictionary.html