Add Bookmarks, Watermarks, Headers, and Footers.Secure Documents with Passwords and Permissions.Fill In & Save PDF Forms (Including forms with JavaScript calculations/validations).Create PDFs from Word, Image or Text Files.PDF Studio is a complete PDF editor for Mac OS X that supports most PDF features needed by end-users: PDF Studio is all-in-one, reliable Acrobat alternative and is offered at a one-time low price instead of a monthly subscription. PDF Studio is a user friendly, powerful and affordable PDF editor that works on the latest versions of macOS (11 Big Sur) and macos 10.15 (Catalina) (and also some older versions of mac OSX ).