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This tutorial demonstrates how to disable printing in a PDF document. By selecting the make secure PDF option in the PDF writer and deselecting the allowed printing checkbox, the document becomes protected. The protected PDF file has a .pdc extension and can only be opened with the Lock Lizard Secure PDF Viewer. Printing is disabled, as evidenced by the greyed out print icon in the viewer. This prevents users from printing the document using keyboard shortcuts or the print button.