How to set a password for PDF_PDF encryption operations at a glance

Protect your PDF files: How to set a password for PDFs As digital files become more common, protecting sensitive information is crucial. PDF encryption prevents unauthorized access and tampering, providing extra security for your important documents. PHP editor Baicao will introduce in detail how to set a password for PDF to help you ensure the security and confidentiality of the file.

How to set a password for PDF

1. Open the PDF file that needs to be encrypted.

2. Click the "Protection" tab in the menu bar and find the "Document Encryption" button.

3. Open the "Document Encryption" dialog box, check the "Set Open Password" option or the "Set Editing and Page Extraction Password" option, set the password and confirm it twice. Finally, click the "Confirm" button to complete document encryption.

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