Since (I think) a recent Windows update I have been unable to "Save As PDF" or convert Word files to PDF using the Acrobat tab on the ribbon.
BEFORE this issue I was getting to the point where I could only open one PDF at a time through Windows, otherwise would get the "A running instance of Acrobat has caused an error" error.
I am using:
I have tried uninstalling and reinstalling both programs. I have tried repairing the installations. Everything is up to date. The PDFMOfficeAddin.dll Add-In is loaded and enabled in Word (I have tried removing and re-adding it). Nothing has worked. I can print to PDF but that fails if the document has complicated formating or fonts.
I get one of these two error messages when I try:
Unable to find "Adobe PDF" resource files, OR
Running the installer in repair mode does nothing.
The first thing I would try is to uninstall Acrobat using Adobe's "Cleaner" tool: https://www.adobe.com/devnet-docs/acrobatetk/tools/Labs/cleaner.html
A "normal" uninstall will leave stuff on the system that can potentially keep a problem from surviving a reinstall, but the Cleaner should take care of such things. If that still does not give you a working system, the problem may be on the Word side.
Have now tried this without success. I am going to try uninstalling and scrubbing Office and will report back if that helps.
That has solved the Save to PDF problem but I'm back to having the "A running instance of Acrobat has caused an error" problem.