[PDFBOX-2941] Improve PDFDebugger (2)

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.0
• Component/s: Utilities
• Assignee: Unassigned
• Reporter: Tilman Hausherr
• Created: 21/Aug/15 19:00
• Updated: 02/Sep/23 03:48

Description

This is a follow-up issue to PDFBOX-2530 to implement extra ideas that came up in GSoC2015, ideas that were not implemented due to lack of time, and new ideas.

Viewing

• refactor PDFDebugger.java
• ✓ render glyphs of fonts
• ✓ refactor StreamPane to share stream filtering among Text view and hex view
• ✓ password dialog when hitting protected PDF
• show "pretty" XML
• display filtered streams even if the unfiltered stream is corrupt (PDFBOX-2976)
• ✓ display the "caused by" part exception stack trace (nested exceptions)
• ✓ keep zoom
• ✓ integrate DrawPrintTextLocations into rendering
• integrate area text extraction with a mouse-created rectangle that shows the coordinates in a status line
• ✓ show permission flags of Encrypt/P entry
• ✓ show signature flags of Root/AcroForm/SigFlags entry, see Table 219 in PDF spec
• ✓ show page labels additional to page number (see file from TIKA-2121 as example)
• ✓ "reopen" menu item (useful when editing an existing PDF to create a reduced PDF)
• choose zoom automatically so that PDF page can be seen in full

Editing

• save modified PDFs
• editing in hex viewer
• remove nodes (e.g. elements from a COSDictionary)
• delete array or dictionary elements
• load content streams
• edit & keep content streams

Issue Links

• fixes: PDFBOX-3339 PDFDebugger shows wrong hex view for image