Hey there,
Thanks for reporting the concern.This issue occurred with the earlier version of Acrobat DC. With the latest version, there isn't such issue reported so far.
We'd see if its a latest patch that's causing trouble, or a problem with the existing file.
1- The document you are working with, is it a scanned document or contain text and images both? Any other PDF that returns the same error?
2- We have an option update available for Acrobat DC. You may install it from within Acrobat itself. Open Acrobat>Help>Check for update> Reboot Acrobat or refer to this release note: https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html
3- If its a specific document, then Navigate to Acrobat>Edit>Preferences>Security (Enhanced)>disable "Protected View"and "Enhanced Security">OK>Reboot Acrobat
Note: these changes are only for testing purpose. Once tested, please change it back to the previous setting.
4- In next step Open Acrobat>Help>Repair Installation>reboot Acrobat DC
Let us know if this makes a difference.
Thanks,
Akanchha