Sorry that I can't send the file as it is confidential. But I can share more below of your investigation. 1. The files can only be open by Acrobat Reader 2. It can only be open when I have internet access 3. When I open it with PDF-XChange Editor. It says "Error [Pdf Structure Library]: Unknown...

Hi, I have lots of PDF files that can only be open by Acrobat Reader (the files cannot be read by PDF-Tools or other PDF readers). I can open the PDF file by Acrobat Reader and print it to PDF using the PDF-XChange printer one by one successfully. I would like to use PDF-Tools to batch print them to...