Dec 5, 2025 · Learn how to add password security to PDFs in Adobe Acrobat to restrict opening, editing, printing, or copying of documents.

Click the Select a file button above, or drag and drop a PDF into the drop zone. Enter a password, then retype it to confirm the password. Click Set password. Download the password-protected PDF …

Add PDF password protection with the Adobe Acrobat online tool for free. By adding a password to your PDF file, you can limit access and only allow people with the password to view the file content.

Learn how to password protect PDF files using your PC. Adobe Acrobat makes keeping your information secure simple with our suite of features.

If you’re working with sensitive information, you have to protect it. Learn how to easily encrypt with password and apply permissions to PDF files to prevent copying, changing, or printing your PDFs.

Learn how to secure a PDF file. Secure your sensitive documents and protect PDFs with passwords to ensure only authorized users can access them.

Nov 10, 2025 · Learn how to add a password to your PDF to protect others from opening or editing the PDF file. Protecting your PDF files prevents unauthorized access, protects sensitive information, …

We’ll show you how to password protect a PDF for free and restrict certain features, such as printing and editing, in Adobe Acrobat.

Discover how to encrypt a PDF file to keep sensitive information secure via email. Our guide provides easy steps and helpful tips for protecting PDFs.

Dec 10, 2024 · On the Acrobat on the web homepage, select Edit > Protect a PDF. In the dialog box that opens, select the file location from the top menu, select the file you want to protect, and then select …