According to your guide (Depending on the document type, you may be able to edit or view these properties. More fields may be available depending on the document type.), this means that I am currently unable to modify information such as the author of a PDF file, because the file format is PDF, and therefore cannot be modified.
However, in another DEVONthink database of mine, which also contains PDF files (also all in the same searchable PDF file format, i.e., PDF+text), I am able to modify the author information of these PDF files.
Therefore, I suspect that DEVONthink may have locked the database containing the previous PDF, preventing modifications. This situation was not mentioned in the previous guide, which is why I posted it on the forum. I hope for some guidance on this, thank you.
