Short description of PDF Version Converter 2.01: In the PDF world, every PDF file is generated or produced according to the Adobe PDF specification, which has evolved from version 1.0 to version 1.7 since 1993. More often than not, you are required by a certain software program or a website or a publisher to provide a specific version of PDF files. PDF Version Converter software enables you to convert PDF files between different versions to solve the compatibility problems.