I want to fold pdf bookmarks.
How to make PDF index/bookmarks/outline always folded/collapsed/wrapped on Okular
I only see that pdftk can insert bookmarks, but not how to fold bookmarks.
https://opensource.com/article/22/1/pdf-metadata-pdftk
Is there a way to use pdftk to fold bookmarks?
Not with pdftk, but you can do it with the community version of cpdf:
cpdf -bookmarks-open-to-level <n> in.pdf -o out.pdf
Where is 0 to close all bookmarks, 1 to open just to the next level (maybe chapters) and 2 to the next level (maybe sections?)
cpdf -list-bookmarks in.pdf
will show you the current levels.
