What version of PDF files does PDF Xpress v2 support?
PDF Xpress v2 will open a well-formed PDF document of any version, if a valid user- or owner-password is provided, as required. The PDF specification is designed to be backwards compatible. Even earlier versions of Adobe Reader should open the newest PDFs; unknown features are typically ignored. Operations such as printing to EPS, rendering, etc are governed by the permissions associated with the password (if any) used to successfully open the PDF. PDF Xpress v2 will create PDF v1.6. PDF Xpress v2 will modify an open PDF document if permissions associated with the password used to open the document permit changes can be made.