light yellow background

This problem has been going on the a very long time. Very frustrating. It does not look like Adobe wants to fix this.

This has been happening to me too, since about the same time. I'm so frustrated by this! As someone who frequently screenshots slides from PDFs and uses them in my note-taking, this has really eliminated my ability to use Adobe as a PDF viewer right now. I hope they find a solution right away. 

I guess the right answer is the same than for Acrobat Pro, you will find it here:

https://community.adobe.com/t5/acrobat-discussions/all-pdfs-created-have-yellow-backgrounds/td-p/12386130/page/2

Hi All,

thank you for reporting this to us.

This issue has started to appear after latest patch. Since its already escalated, our engineering team is actively looking into it.

As soon as a fix will be available, we'll keep you posted.

We appreciate you patience!

Thanks,

Akanchha 

Mine started doing that last Friday too.  No one else in the office shows up that way.  I have searched and can't find anything to fix it.