Adobe - Out of Memory Error
Out of memory error
This error can happen with exceptionally complex or large documents with hundreds of pages. The 64-bit version hasn't been officially rolled out by Adobe yet and is not offered as an option through Creative Cloud at the time this SP was written.
Uninstall 32-bit version of Adobe Acrobat Pro
Install 64-bit version
Download Acrobat DC 64-bit for Windows (adobe.com)