For Able2Extract Professional, download the following file: http://www.investintech.com/download/specbuilds/Able2ExtractPro7176.zip
For Able2Extract Standard, download the following file: http://www.investintech.com/download/specbuilds/Able2Extract7176.zip
Download the file and then extract the executable file and save it to the directory where you installed Able2Extract initially (C:\Program Files\Investintech.com Inc\Able2Extract Professional 7.0 by default).
Run the file from there.
Do not replace the old executable with this new one - just use this one for files that the old one does not work with. This should allow you to convert large PDFs without having to reprint.
This article refers to Able2Extract and Able2Extract Professional.