DRM (Digital Rights Management) is a technology that secures files and assigns certain rights to people who attempt to access the file. This feature is common for software as well as eBooks and other files in PDF format. DRM can restrict a file in a number of ways, such as limiting the user's ability to print or open the document on other computers. If you want to add DRM to a PDF file, you need to purchase additional software.
Use Adobe Content Server to add DRM to your PDF file. This software comes from the same company that created the PDF format. It allows you to add digital rights to PDF files and then manage those rights over a server. You can set access permissions to expire for users after a certain period of time. The program is compatible with Linux and Windows operating systems. You also need an SQL serve software, Java, servlet engine, and SSL technology installed on your system.
Add DRM to a PDF file using Armijisoft's PDF Security OwnerGuard software. After logging into the program choose the option to "Protect Your Files" and upload the PDF file to add the DRM feature. Generate access license codes for users automatically or manually. You can also add watermarks to the PDF file so that it appears when the user prints or views the PDF document. Choose from a Personal, Advanced, Enterprise, or Server version of the program.
Protect your PDF files using Haihaisoft's DRM-X, an online platform that controls who can access your files and how they can view them. You don't need a server in order to manage your documents using this service and it doesn't require maintenance or development. When you upload a PDF file to the system, it protects the file and assigns a unique license key to each viewer who downloads the document. You have to pay a monthly fee to continue using the software.