Protect PDF

Secure Your PDFs with a Password

If you need to share a PDF that contains sensitive or private information, adding a password is a smart precaution. This tool lets you set a password that must be entered before anyone can view the document. It is a quick and reliable way to add a layer of security to contracts, financial documents, medical records, or any file you want to keep private.

When to Use This Tool

Password protection is useful when sending documents by email, uploading files to shared drives, or distributing material that should only be viewed by certain people. Email is not a secure channel by default, so encrypting the PDF before attaching it gives you peace of mind that even if the email is intercepted, the document cannot be read without the password.

How the Encryption Works

The tool applies standard PDF encryption to your file using the password you provide. When someone tries to open the protected PDF, their PDF reader prompts them for the password before displaying any content. Without the correct password, the document simply will not open. The encryption does not alter the content itself. Your text, images, formatting and layout remain exactly as they were.

Best Practices

Choose a strong password that is not easy to guess. Avoid simple words or common phrases. A mix of letters, numbers and special characters works best. Share the password with the recipient through a different channel than the document itself. For example, send the PDF by email and share the password by text message or phone call.