I just imported a bunch of PDF documents into the Scrivener project for research.
However, as I am trying to open the files in external editors (I’m using PDF Expert.), it failed and showed the following message:
But in the Scrivener project, as I clicked the document, it can still be shown:
How can I fix this problem? It was not always the case. One of the files (the first PDF that I edited) works fine. But later the others seem all corrupted (but I didn’t check them all). Thanks!