Protect PDF

Upload a PDF and set a password. Viewers will need it to open the file.

Drag and drop files here, or choose from your device

No file selected

What Protect PDF does

Adds a password required to open the PDF.

Useful before email, client portals, or shared drives.

Returns a new file — keep your original unprotected copy if needed.

How to password-protect a PDF

  1. 1

    Upload the PDF

    Choose the document you want to lock.

  2. 2

    Set a password

    Use at least four characters you can share with the recipient.

  3. 3

    Download the protected PDF

    Save the new file and test opening it with the password.

When to protect a PDF

Password protection helps when a file leaves your control but should not be open to everyone. Contracts, payroll, medical summaries, and financial exports are common examples.

LovePDF adds an open password. It is not the same as redacting content or removing metadata — review sensitive exports before sharing.

Related guides

Short articles tied to this tool. They help reinforce the page topic and send readers to the closest practical workflow.

FAQ

Will this remove editing restrictions?
It adds an open password. Existing permissions inside the PDF may still apply depending on the source file.
Can I unlock a PDF here?
This tool only adds protection. Unlocking password-protected files you do not own may not be supported.

Related tools

Organize or compress before you protect and send.