This could be
occurring for one of two reasons.
If the error is persistent, it may be because you have an older version of our software and have recently upgraded your Adobe products to 9 or higher. If the version of Able2Extract you are using is older than version 6.0, it will be unable to open certain newer format PDF documents created by Acrobat. This is attributable to a change in the way Acrobat creates PDF - something we had to address with version 6.0 (we're on version 8.0 currently). If this is the case, you will need to purchase an upgrade, as your older version of Able2Extract is no longer compatible with your Adobe software. You can find the upgrade here:
Alternately, your PDF file may be internally corrupted or may not be conforming to PDF encoding specifications. Either it was created using a non-standard PDF creation product (such as a scanners PDF creation driver), or the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).
In this case, I would suggest that you try to "fix" the PDF by reprinting to PDF. To regenerate, you need to open the file in Adobe Acrobat, or a similar program that can print to PDF, such as our Sonic PDF Creator (there are also free ones available on the Internet), and then choose to print it to PDF. After regenerating the PDF file, you can open it in the Able2Extract program. In certain cases, regenerating the PDF can fix certain errors in the PDF file - this may be the case with your PDF file.
This article refers to Able2Doc, Able2Doc Professional, Able2Extract and Able2Extract Professional.