6-3. Watermark Watermarks such as classified and important (in text or BMP format) can be superimposed on documents. Additionally, you can also choose a “user name” or a “computer name”. Reminding the recipient to handle the documents carefully deters unauthorized use. 6-4. PDF Encryption You can scan a document into a password-protected PDF file. This can prevent third parties from viewing documents without authorization. Printer PC Scan PDF Server (PDF encryption) Memory card USB memory - 16 -