I just started getting this error within the last few days. I am running Windows 10 and using Adobe Acrobat DC. I installed a Windows update this week. It seems like the error is with documents I have created by printing to pdf. Downloaded pdfs do not seem to have this problem. How do I fix this? I have seen several threads with similar problems, though the fix instructions are beyond my understanding. I am not a tech person though am good at following instructions if someone can walk me though a fix. Thanks!