[PDFBOX-5865] Show ASN.1 decoded Contents for Signature-Dictionary

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.0.33, 3.0.4 PDFBox, 4.0.0
• Component/s: Swing GUI
• Assignee: Tilman Hausherr
• Reporter: beat weisskopf
• Created: 07/Aug/24 13:29
• Updated: 09/Aug/24 14:08
• Resolved: 08/Aug/24 12:33

Description

I really like the Pdfbox Debugger and use it sometimes to debug issues with PDFs.

Most of the PDFs we work with are signed. Currently the "Contents"-Entry in the Signature-Dictionary is not displayed as ASN.1. I made a "good enough" for me implementation, such that I can see the ASN.1 structure. See the attached patch.

I am not sure, if that works for all signature types, maybe some more checks are needed (Subfilter?).