PDF Security OwnerGuard is the security, digital rights management (DRM), copy protection, watermarking, licensing, and distribution management solution for Adobe PDF Documents. This product is made especially for internal company documents security and publishers of high value information published in PDF format. PDF Security OwnerGuard Locks your PDF documents to individual computer(s). PDF Security OwnerGuard Defines High Security expiration dates or working times for your DRM protected PDF documents. With PDF Security OwnerGuard you can use full features of Adobe Reader for your DRM protected PDF documents.