I have a PDF which I created using PDFClown. For some reason, Acrobat reader toasts an alert "An error exists on this page...", and I don't know why.
I also don't know how to find where is the bug in the file.
To succeed you have to know the PDF structure (which I don't...)
The file is attached.
I would like to know *where* is the bug in the file, and how to fix it. (not just fix it).
A copy of the file can be found on:
A simpler file which has the same problem can be found at the address: