Protect & Unlock PDF
Encrypt your confidential PDF documents with strong AES-256 password protection, or permanently remove passwords when provided — fast, private, and unlimited.
Drop your PDF to Lock or Permanently Unlock
Encrypt with AES-256 password protection or permanently remove password restrictions. 100% private.
How It Works
Upload File
Select or drag your PDF document into the browser dropzone.
Set Password
Enter and confirm a secure password to lock your document.
Save Protected
Download your encrypted document ready for secure emailing or storage.
Need an offline PDF security & scanning toolkit on Android?
Download PDFCraft on Android to lock, unlock, merge, compress, edit, and scan documents with zero internet required.
Frequently Asked Questions
Can I permanently remove a password from a protected PDF?+
Yes! Simply upload your password-protected PDF, enter the current password once, and PDFCraft will decrypt the file in your browser and export an unlocked PDF that will never ask for a password again.
What encryption standard does PDFCraft use when locking files?+
PDFCraft uses industry-standard AES-256 (Advanced Encryption Standard with 256-bit keys). This is the highest standard recognized globally for electronic document security, accepted by banks, government agencies, and legal institutions.
Will my password-protected PDF work in Adobe Acrobat and phone apps?+
Yes. The encrypted document adheres strictly to standard ISO PDF encryption specifications. When opened in Adobe Acrobat, Apple Preview, Google Chrome, Safari, or any mobile PDF viewer, a standard password prompt will appear.
Can PDFCraft recover my document if I forget the password?+
No. Because PDFCraft adheres to a 100% private, on-device architecture, we do not store, log, or transmit your passwords or document contents. Only someone who knows the password can decrypt and open the file.
Are my confidential documents uploaded to any server during encryption or unlocking?+
Never. All cryptographic hashing, key generation, and AES-256 stream encryption/decryption happen inside your local web browser session. Your documents never touch external servers.