Quote:
Originally Posted by Dougr33
It changes it in the Calibre database, but it doesn't change any information in the PDF itself. So if I were to send the file to a friend to drag into their Calibre library, it would not have the new author name, title and Tag that I gave it in Calibre. If I change it in the PDF's properties, then no matter what library I drag it to, it has my preferred info.
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Are you sure that you are getting the PDF file out of the Calibre library filestore using "Save to Disk" rather than simply using the OS level facilities to copy it out? The "Save to Disk" option should be updating the mentioned metadata just like a Polish Books feature would if it was available for PDF files.
Having said that changing the PDF properties directly is certainly a more robust way of doing, albeit more effort. It would also allow you to set PDF properties that Calibre does not update.