Quote:
Originally Posted by GeoffR
I can't guess what is wrong with the PDF, but don't take the "protected by DRM" message too seriously. When a Kobo device tries to open a book and fails, but doesn't know why it failed, then it assumes the failure was because the book is encrypted with DRM. It could just mean the book is corrupted, or there is just something about the book it can't handle.
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Oh, ok then. Is there a way I can check or repair the PDF? Adobe Reader is opening it without any issues...
Ok, so I was able to resolve the issue by running Ghostscript with these options
Code:
gswin64c -o repaired.pdf -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress original.pdf
Now it opens the PDF.