Encrypt & Decrypt PDF (Offline) Free, Fast, Private
Password protect or unlock PDFs in your browser. 100% client side, lifetime free, no uploads, no sign ups. Works on Windows, Mac, Linux, and mobile.
Encrypt Your PDF
Decrypt Your PDF
How It Works
- For encryption, select a PDF file, enter a strong password, and click "Encrypt PDF."
- For decryption, select an encrypted .epdf file, enter the correct password, and click "Decrypt PDF."
- All processing happens securely in your browser your files are never uploaded to any server.
Fast, Free, Private PDF Encryption (100% Offline)
Password protect or unlock PDFs securely in your browser. No uploads, no watermarks, no sign ups truly private and lifetime free.
Why people love this PDF encrypt & decrypt tool
Offline & secure
Everything happens on your device your files never leave your computer or phone.
Encrypt or decrypt
Lock PDFs with a password or unlock files you own with the correct password.
Free & unlimited
No limits, no watermarks, no registration forever free.
Works everywhere
Chrome, Edge, Safari, Firefox on Windows, Mac, Linux, Android, and iOS.
Private by design
No uploads, no tracking. Your information stays 100% confidential and secure.
Top speed
Small, fast, and reliable optimized for quick encryption and decryption.
Popular uses worldwide
Business contracts & proposals
Encrypt PDFs before sharing with clients and vendors to protect sensitive terms and pricing.
Finance & invoices
Password protect invoices, statements, and reports to keep financial data confidential.
HR & personal data (PII)
Secure payroll files, performance reviews, and employee records before sending.
Legal & compliance
Protect filings, discovery, and agreements; decrypt only when authorized.
Healthcare & insurance
Encrypt medical records, claims, and policy PDFs before sharing with partners.
Education & research
Protect transcripts, student records, exam papers, and research PDFs.
PDF Encrypt & Decrypt (100% Offline)
Password protect or unlock PDFs securely in your browser. No uploads, no watermarks, no sign ups free and unlimited forever.
- Encrypt PDF: lock any PDF with a strong password and download instantly.
- Decrypt PDF: open password protected PDFs you own with the correct password.
- Private by design: processing is client side; your files never leave your device.
- Works everywhere: Chrome, Edge, Safari, Firefox on Windows, macOS, Linux, Android, iOS.
- No limits: lifetime free, no accounts, no watermarks, fast and reliable.
- .epdf format: encrypted files use .epdf; decrypt anytime to restore a standard .pdf.
How to encrypt a PDF
- Upload your PDF (drag & drop or select a file).
- Enter a strong password (12+ characters recommended).
- Click “Encrypt PDF” and download your protected file.
How to decrypt a PDF
- Upload the encrypted .epdf file.
- Enter the correct password.
- Click “Decrypt PDF” and download your unlocked file.
Tip: Save your password safely it cannot be recovered.
Best practices
- Use a long passphrase (12–24 chars) with letters, numbers, and symbols.
- Store passwords in a secure password manager.
- Only decrypt PDFs you own or have permission to access.
- Test the decrypted PDF to confirm it opens as expected.
Global availability
Works worldwide USA, UK, Canada, Australia, India, EU (Germany, France, Spain, Italy, Netherlands), Middle East (UAE, Saudi Arabia), Asia (Singapore, Malaysia, Philippines, Indonesia, Japan, South Korea), Africa (Nigeria, South Africa, Egypt), and Latin America (Brazil, Mexico, Argentina). If your browser works, our PDF encrypt & decrypt tool works.
Frequently Asked Questions
Is it private and secure?
Yes. Everything runs locally in your browser no uploads, no tracking, no servers. Your files never leave your device.
Is it free and unlimited?
Yes. Lifetime free, unlimited use, no watermarks, and no account required.
What is a .epdf file?
It’s an encrypted PDF container created by this tool. Use the same password to decrypt it and download a normal .pdf.
Can I remove a PDF password?
Yes if you know the password. Decrypt your file and save an unprotected copy. Only use this on files you own or are authorized to modify.
How strong should my password be?
Use 12+ characters with upper/lowercase letters, numbers, and symbols. Store it safely; it can’t be recovered if lost.
Which browsers and systems are supported?
Modern Chrome, Edge, Safari, and Firefox on Windows, macOS, Linux, Android, and iOS.
Is there a file size limit?
No artificial limits. Very large PDFs depend on your device’s memory and browser capabilities.
Do you store or upload my files?
No. All processing is client side. Nothing is uploaded or stored on a server.
I forgot my password can you recover it?
No. For your privacy, passwords aren’t recoverable. Use a password manager to keep them safe.
Why won’t a PDF open or decrypt?
Check the password and file type (.epdf for encrypted files). If the file is corrupted, re export the PDF and try again.
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