,PDFEncryptisafree,open-sourcenativeWindowsappthatallowsyoutopasswordprotect(encrypt)PDFfilesforfree,withoutpurchasingexpensivesoftware ...,Right-click(orpressandhold)afileorfolderandselectProperties.·SelecttheAdvancedbuttonandselecttheEncryptcon...
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OpenthePDFandchooseTools>Protection>Encrypt>EncryptwithPassword.6.Ifyoureceiveaprompt,clickYestochangethesecurity.7.SelectRequireA ...
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