We have an intranet on which users often post information as PDFs.
Many of these PDFs are non-searchable. That is, they appear to be images (text is not selectable/searchable, SharePoint search unable to index the contents). However, some are fine.
The metadata on the non-searchable PDFs shows them being saved on Windows using Office365 on company-issued hardware. I have asked some users named in the metadata, and they confirm all they are doing is saving as PDF from Word.
Unaffected (searchable) PDFs shows them being either saved on MacOS computers (typically using InDesign), or using Google Chrome (perhaps some extension?).
Is this an Information Rights Management issue?
If so, I'm not responsible for that, but I can find the person who is and ask them.
Or might it be some other issue?
EDIT:
Here's what I'm seeing, but I've not been able to test No. 2 (only been told this happens) below:
Save a PDF from Word on a Windows machine not supplied by the company. The resulting PDF is searchable by default.
Save a PDF from Word on a Windows machine supplied by company. The resulting PDF is not searchable and cannot be made so by the user.
Save a PDF from Word on a Macintosh machine supplied by company. The resulting PDF is searchable by default (using "Best for printing" or "Best for electronic distribution (uses Microsoft online service))".