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This video tutorial demonstrates how to disable printing in a PDF document. To protect the document, right-click on the PDF file in Windows Explorer and select "Make Secure PDF." In the PDF writer, go to the printing and viewing tab and uncheck the allowed printing checkbox. Click "Publish" to confirm the protection status. The protected document will now have a .pdc extension and can only be opened using the Lock Lizard Secure PDF Viewer. Printing will be disabled, as indicated by the greyed-out print icon, and keyboard shortcuts for printing will not work.