Quote:
Originally Posted by Uncle Robin
Kobo has been very upfront in specifying that these functions are not available on DRM-protected PDFs or PDFs where annotation has been disabled - do the PDFs you've tried fit these categories perhaps?
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I thought I'd quote this to emphasise it. PDFs have lots of security options available for producers and guessing what is a limitation in the software vs what is a limitation imposed during document production is not always easy. Check the PDF security properties, or even better, create your own PDF with no security and then compare results.
This presents difficulties, obviously, as some of your PDFs are bound to secured in ways that make them less than ideal for this sort of use.
@franklekens thanks for your review, this is one of the aspects I have been interesting in.