Add Password to PDF
Adding password to PDF online — reliable protection for confidential documents. The service encrypts the file. Only those who know the password gain access to viewing and editing.
No more worrying about sending personal contracts or financial reports. The password blocks unauthorized opening and copying of data. PDF protection works when transferring the file via email or messengers.
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Frequently Asked Questions
To restrict access to the document and protect sensitive data. A password prevents unauthorized users from opening, viewing, or modifying the file. It’s a simple way to ensure the security of important information.
We use the modern AES‑256 encryption algorithm. For robust protection, we recommend using strong, long passwords with a mix of upper and lower case letters and special characters.
Download the PDF, enter a strong password and start protection. To open the received document, you will need this password.
Use a long, unique phrase or a combination of mixed-case letters, numbers, and symbols. Do not use your name, date of birth, or password from another service.
No. PDFStorm does not store your password and will not be able to recover it. Save your password in a password manager or other safe place.
The tool sets a password to open and encrypts the document. Support for additional restrictions varies by PDF program, so don't assume that preventing printing or copying is absolute protection.