Easy to use, saves time Time utilized more efficiently, forms completed with step by step guidance, simple for beginners or working late hours, most documents are available in the library, folder organization, can add signatures all in one spot. PDF filler has a large library of documents, anyone can easily personalize templates, can prepare add signatures and finalize documents all in one step, saves time! It does not have version history. It automatically saves all changes, however comparing to old versions has to be done through downloaded pdfs