How do I fix Acrobat's 'An error was encountered while processing images"
Christopher Brooks, 14 Oct 2014
Last updated: 14 Oct 2014

There are limits to how large a file may be uploaded to the publication facility.

One way to reduce the size of a PDF is to use the File | Save As | Reduced Size PDF option in the full, non-free version of Adobe Acrobat.

If you get an error: An error was encountered while processing images, then try using the preflight tool to reduce transparency.

1. In the full version of Adobe Acrobat, select Edit | Preflight
2. In the Preflight window, under PDF Fixups, select "Flatten Transparency". Select any resolution, selecting low is fine
3. Click on "Analyze and fix"
4. Close the preflight window.
5. In the Acrobat window, select File | Save As | Reduced Size PDF