Full AES Encryption
Desktop PDF Champ uses proper encryption — not possible reliably in browsers.
PDF Tools
PDF Encryption — Password Protect
Password-protect and encrypt PDF files with Softaken desktop PDF Encryption. Browser tools cannot reliably apply encryption.
Why this isn’t in the browser
PDF Encryption (password protect) requires desktop-grade encryption that browsers cannot reliably provide. Use Softaken PDF Encryption for protect, permissions, and batch security.
Softaken desktop apps run locally on Windows and Mac with full encryption support, batch processing, and advanced PDF security — without uploading files to a server.
Protect a PDF in 3 Steps (Desktop)
Reliable password encryption with PDF Champ desktop software.
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Step 1
Download PDF Champ
Get the Windows or Mac desktop app from softaken.com.
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Step 2
Set a Password
Open your PDF and choose encryption with a strong open password.
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Step 3
Save Protected PDF
Save the password-protected file securely on your computer.
Why Use Desktop for PDF Protection
Browser tools cannot match full encryption — here is what desktop offers.
Open & Permission Passwords
Set passwords for opening and restrict printing or copying.
Reliable Results
Encrypted files open correctly in Adobe Reader and all major viewers.
Batch Protection
Password-protect multiple PDFs at once on desktop.
Windows & Mac
Native desktop apps for both platforms.
Free Trial Available
Try PDF Champ desktop before you buy.
Pair with Unlock Tool
Use our online Unlock PDF tool when you know the password.
Other Tools Stay Online
Merge, split, compress and more work free in your browser.
Frequently asked questions
Why is browser protection not available?
Our browser PDF library cannot reliably encrypt files. Desktop PDF Champ uses full encryption support.
What if I forget the password?
Passwords cannot be recovered. Store it safely or use our Unlock tool if you know it.
Is this the same as a digital signature?
No. This adds open-password encryption, not a legal digital certificate.
Need more features? Try Softaken for Windows.
