Our shared drive has a 20-page contract PDF that coworkers keep editing. I set the folder to read-only but they still overwrite it. Can a PDF actually be locked so nobody can change it?
Honestly, the simplest thing is adding a permissions password to the PDF itself in Acrobat to block editing. To be fair, if they’re still overwriting it, someone might need to check your drive permissions again becuase read-only should stop that.
That is frustrating. You can set a PDF password that restricts editing, but it is not absolute protection if someone can download the file and use another PDF tool. I would keep a master copy in a restricted folder, give coworkers a separate read-only copy, and enable version history on the shared drive so overwritten files can be restored.