On 04.01.2023 19:22, John Lussmyer wrote:
I have a pdf with several Optional Content groups. I can find their definitions in the Page/Resources/Properties dictionary, but I don't see how they are enabled or disabled. Where is that controlled?
This is below the document root, use PDFDebugger to look at it (first click "view", "show internal structure"). To learn more, you'll have to read the PDF specification, although some can be understood by looking at the structure below. This is from the file at https://issues.apache.org/jira/browse/PDFBOX-5524 which has two "off" OCGs
Tilman
