DRMZ is a secure proprietary file format, which is created by Drumlin Publisher in order to protect Adobe PDF (Portable Document Format) Files and make them more secure. The Drumlin Publisher software exports PDF files to DRMZ or DRMX file format. It makes the PDF file more secure by adding proprietary encryption OR encoding system. The PDF file is encrypted/encoded from the header and encapsulated in DRMZ file.
Note: The DRMZ file is similar to the DRMX file; the only difference lies in their compatibility with devices.
The permission set by Drumlin could be like starting and ending date of the document, document expiration time, enable/disable clipboard, enable/disable printing option of that document, and enable/disable screen capture of that document. There is also an option to set document password. Publisher can also set watermarks in document. There are two options for watermarking: a visible watermark in print and a visible watermark on screen. These permissions protect DRMZ file in such a way that unauthorized users cannot access DRMZ without authorization.