Encrypt PDF
Online & free tool to password-encrypt a PDF before you share it


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Only alpha-numeric characters are allowed, maximum length is 40 characters.
The password will be required to open the encrypted PDF. Use only letters and numbers, up to 40 characters.

How to encrypt a PDF online

STEP 1

Upload the PDF you want to encrypt from your device.

STEP 2

Enter a password recipients must use to open the document. Use a strong phrase you can share out of band.

STEP 3

Click Encrypt PDF. Download when processing finishes. Each file stays available for up to 5 downloads.

Lock before sharing

Encrypt contracts, statements, and ID scans so casual forwards do not open without the password.

Works in the browser

No desktop PDF suite required. Encrypt on Windows, Mac, or mobile.

Pair with other PDF tools

Compress or flatten first if needed, then encrypt the final version you send.

Encrypt PDF vs Protect PDF

Both add password protection. Use Encrypt PDF when you specifically need an encrypted open password. Protect PDF covers the same everyday “lock with a password” workflow. Pick the page name that matches how you searched.

Share the password safely

Send the encrypted PDF and the password through different channels when possible. Keep an unencrypted master only where you store sensitive originals.

Will encrypting a PDF change its content?

No. Encryption controls who can open the file. Pages, text, and images stay the same once the correct password is entered.

What if I forget the password?

You need the password to open an encrypted PDF. Keep a secure record; this tool cannot recover a lost password.

Can I encrypt several PDFs at once?

Yes. Upload a batch within plan limits, set the password, and download each encrypted file.

How do recipients open the file?

They open it in any standard PDF reader and enter the password you provided. Without it, the document stays locked.