I am using a djvu file, and with okular I have annotations in it. Now, I wish to be able to use this file in Mendeley, which supports only pdf extensions. I know that I can save annotations in okular using Export As -> Document Archive. But that is saved with .okular extension. How do I convert it to .pdf?
I quote the relevant part of the documentation:
Since Okular 0.15 you can also save annotations directly into PDF files. This feature is only available if Okular has been built with version 0.20 or later of Poppler rendering library. You can use File → Save As... to save the copy of PDF file with annotations.