1 person found this helpful
As per the issue description mentioned above, you are getting an error when trying to open a pdf in Acrobat 8, is that correct?
Acrobat 8 is quite an old version and not supported by most newer operating system. You may try updating Acrobat to the latest patch by clicking "Check for updates" option under "Help" menu, reboot the machine after installing update and try again.
You may also try installing Acrobat Reader on your machine using this link: Adobe Acrobat Reader DC Install for all versions and try opening the pdf files.
You may also visit the following links which discuss the similar issue:
Under the Help Menu there is no option to check for updates. I assumed if I had a Professional version I had no need for reader.
3 people found this helpful
There might be an update for Acrobat 8 to get you to 8.1. But that is still obsolete 10 years: you are missing Acrobat 9, 10, 11, 2015 and 2017. Pretty amazed you have Acrobat 8 running at all on High Sierra. We were suggesting you try Reader if you aren't willing or able to upgrade your Acrobat.