protect PDF documents

Use this tool to secure your PDF documents from unauthorized access like copying or printing by adding a password and encrypt it.

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Your files are safe!

We use the best encryption methods to protect your data. All documents are automatically deleted from our servers after 60 minutes. If you prefer, you can delete your file manually right after processing by clicking the bin icon.

Password Protect PDF Documents

Document Open Password:
Confirm Open Password:
All contents of the document will be encrypted and search engines will not be able to access the document's metadata.

Restrict Editing PDF Documents

Disabling text access for screen reader devices for the visually impaired will make this document inaccessible to some disabled users and non-compliant with accessibility regulations such as US Government Section 508.
Change Permissions Password:
Confirm Permissions Password:

Protect Your PDFs from Copying, Editing and Unauthorized Accesss

How to Password Protect PDF Documents

  1. Check Require a password to open the document in the settings group.
  2. Enter a password in the Document Open Password text box.
  3. Re-enter your password in the Confirm Open Password text box.
  4. Select an encryption option:
    • Encrypt All Document Contents: Encrypts the document and the document metadata. If this option is selected, search engines cannot access the document metadata.
    • Encrypt All Document Contents Except Metadata: Encrypts the contents of a document but still allows search engines access to the document metadata.

How to Restrict Editing PDF Documents

  1. Check Restrict editing and printing of the document in the settings group.
  2. Choose the printing option you want to allow: None, Low Resolution (150 dpi), or High Resolution.

    Select “Low Resolution (150 dpi)” printing if your document contains information that you don't want replicated at high quality. And select “High Resolution” if you want other users to maintain full printing abilities.

  3. Choose the changes (edits) you want to allow:
    • None for the greatest protection.
    • Inserting, deleting, and rotating pages if you want users to be able to manipulate the pages in the document.
    • Filling in form fields and signing existing signature fields if you only want users to fill out and sign your form.
    • Commenting, filling in form fields, and signing existing signature fields if you want to get user input or feedback on a form.
    • Any except extracting pages when you want to keep your document pages together.

    Note that “Commenting, filling in form fields, and signing existing signature fields” prevents other users from using the editing tools without password access; however, they will be able to use all the comment and mark-up tools.

  4. Check Enable copying of text, images, and other content to allow users to copy content out of the document, even if they can’t make any changes to the document itself.
  5. Check Enable text access for screen reader devices for the visually impaired to allow access to content by screen readers for users with disabilities.
  6. Enter a password in the Change Permissions Password text box.
  7. Re-enter your password in the Confirm Permissions Password text box.

Not all third-party products fully support and respect these settings. Recipients using such third-party products might be able to bypass some of the restrictions you have set.

How good is PDF password protection?

We are encrypts the document using the encryption algorithm with a 128-bit key size. Assuming that one could build a machine that could recover a key in a second, then it would take that machine approximately 149 thousand-billion (149 trillion) years to crack a 128-bit key.

To create a strong password, increase the length of the password and add a mix of letters (both upper and lower case) and numbers. The addition of symbols can also increase password strength. When you enter passwords, avoid using personal information or common words found in a dictionary that can be guessed more easily.

Protect your PDF file with permissions

Restrict the way people can use your PDF file. Easily prevent them from editing and copying information, or fine-tune file permissions to limit other activities like printing, commenting, form filling, and adding pages.