WPS Office

Free All-in-One Office Suite with PDF Editor


Edit PDFs like Word


Convert, merge, split, scan, and sign PDFs


More than PDF: Use Word, Excel, and PPT for FREE

Free download

Windows • MacOS • Linux • iOS • Android


How to encrypt a PDF file

September 28, 2021

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.

4. ClickConfirm.

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15 years of office industry experience, tech lover and copywriter. Follow me for product reviews, comparisons, and recommendations for new apps and software.