Secure PDF Attachments for Email
When sharing sensitive documents over email, encryption is vital. Our tool lets you add a secure password to any PDF file instantly.
When to use this solution:
Use this before emailing copies of your ID, financial reports, or password-protected contracts to clients or family members.
Common Use Cases
1Step-by-Step Guide
Select your PDF
Click 'Select File' or drag your document into the tool area.
Configure User Password
Enter the password you want your recipient to use to unlock the file.
Apply Encryption
Click 'Protect PDF' to generate the encrypted version in your browser memory.
Save and Attach
Download the protected file and attach it to your email as usual.
Ready to get started?
Use our free tool to solve this problem in seconds. No installation required.
Encrypt PDF for EmailFrequently Asked Questions
Will the recipient need special software?
No, standard PDF readers like Chrome, Safari, and Adobe Reader will simply prompt for the password you set.
Is RC4-128 secure enough?
Yes, it provides a robust layer of protection against unauthorized opening with excellent compatibility across all platforms.