Hi; thanks for the reply. What folder would I do this to? Like my Mac HD? It is not happening within a particular folder.
My Mac HD, this is the screenshot. It won't allow to add my 'user', probably a safety thing. I work off my HD which syncs to a OneDrive folder. But these PDFs that I am having issues are being saved into the Downloads folder, to which I have Read & Write access.
I don't think this is limited to a folder. And why would the permissions to my Mac folders change suddenly?
It will have to be within Mac HD-> Users-> [your user name]-> Library.
[ Or an alternative method would be to click on any open space on the desktop-> Click on "Go" on the top menu bar-> press down the "Option key"-> Library]
The user account library is the location where you are experiencing the issue and it will be the folder you would need to provide permissions to.
Once there on the get info window, unlock the lock icon first and then change the permissions not for your user name but everyone.
[Unlocking the golden lock icon/Padlock requires you to put in your MAC password once]
Once you are done with it, click on the circle with the three dots beside the lock-> click on Apply to enclosed items.
Once this is done, try working with the files.