PDF Encrypt Downloader - Version 3.3.8.3 PDF encrypt software password protects your PDF documents by adding open password and permission password in bulk PDF files. PDF protector program allows setting permissions, password protection, security, limitation on PDF documents for using this tool. Software adds user password used to open PDF documents and owner password used to set various permissions like PDF printing, content copying, form filling, document modifying, page extraction, commenting, signing and copying content for accessibility. User level password protection ensures the owner that only intended recipients can open and view PDF contents while owner level protection ensure that all opened documents are secure from being printed, copied or edited. It protects PDF documents from unauthorized viewing, copying, sharing, modifying, printing, editing, assembling, accessibility of content and saving in unprotected form. It is support to add prefix suffix with resultant file name. Tool supports both RC4 and AES encryption level security either 40 bits length or 128