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 scanner PDF creation driver), or the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).
In cases like this, we would suggest that you try to "fix" the PDF file by reprinting it to PDF. To do so, you need to open the source PDF file in Adobe Reader or a similar program that can print to PDF. After you have done this, please follow these steps:
- Go to File -> Print -> then from the list of available printers select Able2Extract Printer and click on the Print button. (If you are using Able2Extract version 8.0 or older, these versions do not have embedded PDF creation option, so in that case please use the printer that has PDF in its title.)
- In the Print Dispatcher dialog that will now appear, select a location where the reprinted file will be saved and give it a name. Then click on the OK button.
After regenerating is done, you can open the reprinted version of your PDF file in Able2Extract application. Then convert the file into a desired format in a usual way.
This article refers to Able2Extract and Able2Extract Professional.