Encrypt PDF - Free Online | FunToolX
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Encrypt PDF
Set an open password and permissions. Everything runs locally — files are not uploaded.
About this tool
Encrypt PDF is a free online tool. Protect a PDF with an open password and permission restrictions.
After uploading the PDF file, set the user password (you need to enter to open the file) and/or the owner password (you need to modify permissions). You can set permission restrictions: prohibit printing, prohibit copying text, prohibit modification, and prohibit adding comments. Set the password and download the encrypted PDF file.
PDF encryption uses RC4 or AES-128 algorithms (depending on the PDF version) and is implemented on the browser side through the pdf-lib library. The user password controls opening permissions, and the owner password controls editing permissions. Removing a password requires knowing the correct password. All processed locally and passwords will not be uploaded.
Ideal for protecting sensitive documents from being viewed by unauthorized persons, or restricting printing and copying. It is important to pay attention to password strength. Weak passwords can easily be cracked.
PDF encryption tool, which sets the opening password for PDF files, supports user passwords and owner passwords, and handles them locally in the browser.