Optimization - Error Encountered While Processing Images
I am working on Windows 7 - Adobe Acrobat Pro DC. I have a rather large document that I pulled from multiple sources. I started with a Publisher base which was then converted to PDF. I then pulled in multiple other PDF files to create one large package. I need to optimize the document since it is too large to upload on a web server, however I keep getting the same error:

I have done this before multiple times at my previous employer so I know this process works, but this is a new company and a new product. It has to be in the configuration or settings, but I can't figure out what to change to make it work.
I am working on the following product:

Any suggestions would be greatly appreciated!
Dawn
