pdf source code：
src.zip (4.4 KB)
origin pdf:
内刊30期.pdf.zip (7.6 MB)
converted problem:
before converted:
before converted.jpg (292.1 KB)
after converted:
after converted.jpg (113.3 KB)
It disappeared，please have a check.
We have opened the following new ticket(s) in our internal issue tracking system and will deliver their fixes according to the terms mentioned in Free Support Policies.
Issue ID(s): PDFJAVA-43010
You can obtain Paid Support Services if you need support on a priority basis, along with the direct access to our Paid Support management team.