[PDFBOX-5884] Support OCG visibility expressions

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.32, 3.0.3 PDFBox
• Fix Version/s: 2.0.33, 3.0.4 PDFBox, 4.0.0
• Component/s: Rendering
• Labels: OCGs
• External issue URL: https://bugs.ghostscript.com/show_bug.cgi?id=707999
• Assignee: Tilman Hausherr
• Reporter: Tilman Hausherr
• Created: 09/Oct/24 10:56
• Updated: 09/Oct/24 13:24
• Resolved: 09/Oct/24 11:40

Description

PDF specification about the /VE array in an Optional Content Membership Dictionary: "An array specifying a visibility expression, used to compute visibility of content based on a set of optional content groups". I found a single example in a recent issue in the ghostscript project.