Add Password to PDF from Google Docs Using PDF24
Using PDF24 to add a password is free and does not require a subscription. The PDF24 desktop app for Windows and the browser-based PDF24.org both support AES-256 encryption. This is a solid option when you need to protect PDFs without Adobe Acrobat.
Using PDF24 in the browser
Go to pdf24.org and navigate to Tools > Protect PDF. Upload the PDF you exported from Google Docs. Enter a password and choose the encryption level. AES-256 is available in the advanced settings. Click Protect and download the secured file. The file is processed on PDF24's servers, so avoid this method for highly sensitive documents.
Using PDF24 Desktop on Windows
Download and install PDF24 Desktop from pdf24.org. It is free and does not show ads in the desktop version. Open the app, select Protect PDF, drag in your PDF, set the password, and click Apply. The file is processed locally on your machine, which is better for sensitive documents.
Checking the encryption level
PDF24 defaults to 128-bit AES. For stronger protection, open the advanced settings and select 256-bit AES before applying the password. This is particularly important for financial or legal documents.
Frequently Asked Questions
Is PDF24 completely free?
Yes. The PDF24 desktop app and most web tools are free with no watermarks. Some advanced features on the web version have usage limits.
Is it safe to upload sensitive documents to PDF24.org?
PDF24 states that files are deleted from their servers after processing. For documents with personal data or legal content, using the desktop app keeps files local.
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