Protect PDF
Add a password to lock your PDF and keep it private. Free to protect, no account needed.
- 🔒 Files deleted after 1 hour
- ⚡ Secure 256-bit SSL
- ⭐ 4.8/5 from 12k+ users
The ultimate solution to convert and manage PDF documents with ease
PDFSwitch AI meets all requirements to convert, edit and manage your PDF documents.
PDF editing made easy
Edit your PDFs effortlessly with our intuitive tools. Add text, images, annotations, or even e-signatures, all in just a few clicks.
100% safe and secure
PDFSwitch AI keeps your documents and privacy safe. You can boost security with features like file password encryption, encrypted storage, and more.
15 million people, 180 countries, one simple tool
More than PDF editing, much more
How to protect pdf
- Upload your PDFDrag & drop your file into the upload area, or click to browse.
- Set a passwordChoose a strong password to encrypt your document.
- ProtectWe apply industry-standard encryption to your PDF.
- Download your protected PDFGet a locked file only your password can open.
Why choose PDFSwitch AI
Strong encryption
Your PDF is locked with industry-standard password encryption.
Serious about privacy
Files are encrypted in transit and deleted within 1 hour.
No setup needed
Works on any device straight from the browser — no installs.
All-in-one PDF toolkit
Protect, sign, edit, convert and unlock in one place.
Keep documents private
Perfect for contracts, statements and sensitive files.
Fast and intuitive
Upload, set a password and download in seconds.
Frequently asked questions
Is protecting a PDF free?
Yes — protecting is free. You only pay when you download the locked document.
What encryption do you use?
We apply standard PDF password encryption so the file can't be opened without the password.
Are my files safe?
Files are encrypted in transit and automatically deleted within 1 hour.
What if I forget the password?
We can't recover it — keep your password somewhere safe.