FreeImagePDFTools

Protect PDF (Add Password) - Encrypt PDF Online

Enhance the security of your sensitive PDF documents by easily adding a password for opening them. Our free online tool encrypts your PDF file, ensuring that only individuals with the correct password can access and view its contents. For simplicity, the password you set will be applied for both user (opening the document) and owner permissions (which typically control printing, copying, etc., though this tool focuses on the open password). This is an essential step for protecting confidential information, private reports, or any PDF you wish to keep secure before sharing or archiving. If you later need to remove a password (and you know it), you can use our Unlock PDF tool.

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