Unable to edit PDF – The file you have opened complies with the PDF/A standard 18 March 2015 Grimey 2 Comments Categories: Acrobat, Tech Support Opening a PDF it got the following error. Here is how you fix this. Go to Edit –> Preferences. Click on “Documents” link in the upper left. Go down to “PDF/A View Mode” and select “never.” I hope this helps someone else.