Hello, hope you are well. We are trying to get PADES working with PDFBox. I am working on CreateSignature.java
I checked out the trunk version of examples signature directory. Then changed the Loader class reference with the 2.0 branch version, after I realized the loader class is new. I am working with latest pdfbox-2.0.20.jar. My problem is at the document.saveIncremental(output) line. I get the following exception: Exception in thread "main" java.lang.NullPointerException at org.apache.pdfbox.util.Hex.getBytes(Hex.java:83) at org.apache.pdfbox.pdfwriter.COSWriter.writeExternalSignature(COSWriter.java:792) at org.apache.pdfbox.pdfwriter.COSWriter.doWriteSignature(COSWriter.java:745) at org.apache.pdfbox.pdfwriter.COSWriter.visitFromDocument(COSWriter.java:1150) at org.apache.pdfbox.cos.COSDocument.accept(COSDocument.java:452) at org.apache.pdfbox.pdfwriter.COSWriter.write(COSWriter.java:1386) at org.apache.pdfbox.pdmodel.PDDocument.saveIncremental(PDDocument.java:1392) at CreateSignature.signDetached(CreateSignature.java:157) at CreateSignature.signDetached(CreateSignature.java:96) at CreateSignature.main(CreateSignature.java:180) I can post the source code but it is mostly the same with the repo version. I just changed the keystore and pdf file path. Can you kindly point me in the right direction? Thanks Okan
