AutoMassSecure is a plug-in for Adobe Acrobat software for securing batches of PDF files with individual, randomly generated passwords. The plug-in allows the restricting of document access rights such as printing or editing and protects each input PDF files with random password(s). The plug-in functionality is seamlessly integrated with Adobe Acrobat application as a menu selection. AutoMassSecure plug-in is designed to secure multiple PDF documents at once. The plug-in takes a folder or a set of selected PDF files as input. Every document is secured according to user-defined settings and protected with individual, randomly generated passwords. Secured documents are saved into an output folder without overwritng the original documents. For each output document a record is added to the password file containing a time stamp, output file path and the password(s) generated. The password file can later be accessed by other applications to retrieve this information and perform all necessary processing.