Tagged PDF annotations must appear in the Parent Tree as well.
In order for a tagged PDF to validate, each annotation (such as
a hyperlink) must have a /StructParent entry that links back to
the Parent Tree object, which in turn links that annotation to
its corresponding struct tree node.
The parent tree also contains one entry per page. Both the page
entries and the annotation entries need IDs.
Since we don't know in advance how many pages will be in the
doc at the time we start processing annotations, we start the
annotation IDs with a large number (100,000) which effectively
serves as the maximum number of pages in a document that we can
handle.
Bug: chromium:1100712
Change-Id: I5df84c4249ed6a4d21222cfc86b2c0c9b17d6efb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/300254
Auto-Submit: Dominic Mazzoni <dmazzoni@chromium.org>
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
5 files changed