Protect PDF
Protect PDF adds **password encryption** so only people with the password can open the file. Use this for contracts, salary slips, or KYC packets sent over email.
Step-by-step
- Sign in with a verified account.
- Open Protect PDF.
- Upload one PDF.
- Enter a **password** (minimum 4 characters — use a strong passphrase in production).
- Click **Protect PDF** → download `protected.pdf`.
- Test the file in your PDF viewer before deleting the unprotected original.
Protection uses **qpdf** on the server. If qpdf is not installed, the job will fail with a clear message — contact your admin to install `qpdf`.
Unlock PDF
Unlock PDF removes password protection when you **know the current password**. You cannot break unknown passwords — this is for files you own or were given the passcode for.
Step-by-step
- Open Unlock PDF.
- Upload the protected PDF.
- Enter the **PDF password**.
- Click **Unlock PDF** → download `unlocked.pdf`.
After unlocking you can merge, compress, or watermark the file in follow-up jobs.
Security notes
- •We process files on the server and delete inputs after the job; download results promptly on Free plans
- •Do not reuse marketplace passwords for document encryption
- •Premium users can re-download within 7 days from completed jobs
Account required
PDF protect and unlock require the same **registered, verified email** account as all PDF tools. Image tools in the browser remain available without an account.