Good evening! I'm researching how to validate that changes to a signed PDF conform to LTV (PAdES-only?) specs; i.e. that only LTV-related changes have been made to the document and nothing else (i.e. malicious changes to content).
Is there some guide or any sample code regarding this for PDFBox? I could alternatively examine the changes in the xref table after signing, but I'm not sure if PDFBox supports this. If it does, I'd appreciate a few pointers in the right direction. Constantine -- There is a computer disease that anybody who works with computers knows about. It's a very serious disease and it interferes completely with the work. The trouble with computers is that you 'play' with them! - Richard P. Feynman
