Secure your PDFs instantly with Portimg
Select any PDF file from your device. Up to 50 MB supported.
Enter and confirm a strong password to lock the document.
Click protect and instantly download your encrypted file.
Strong Password Encryption
Portimg adds AES-256 password protection to your PDFs — documents stay secure and private with advanced encryption.
Instant Securing
Protect PDFs in under 2 seconds — no software to install, no account required.
Privacy First
Your PDF is processed securely over HTTPS and never stored permanently on our servers.
All PDF Types
Works with scanned PDFs, fillable forms, multi-page documents, and more.
50K+
PDFs Protected
AES-256
Encryption
<2s
Protect Time
Use at least 8 characters mixing letters, numbers, and symbols for the strongest protection.
We cannot recover a lost password. If you forget it, the PDF cannot be opened.
For best results keep your PDF under 50 MB. Larger files may time out on slow connections.
Protect PDFs instantly for free — no sign-up, no watermarks, no limits.
The protected PDF opens in Adobe Reader, Preview, Chrome, and every major PDF viewer.
All uploads and downloads use HTTPS so your document is safe in transit.
Free, instant, and no sign-up required.