How to encrypt a PDF file
A free Office suite fully compatible with Microsoft Office
1. Open the PDF file with WPS Office.
2. Click theProtectbutton on the top menu bar → Encryptbutton.
3. In the pop-upEncryptioninterface, checkSet the open passwordorSet password of editing and extractingas needed.
To be office specialists, you could learn how to use WPS Office online in WPS Academy.
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