Encrypt PDF
Encryption is confidentiality you can prove: the PDF's contents become mathematically unreadable to anyone without the password — in transit, in storage, in the wrong hands. Free with fair daily limits.
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Drag & drop your file here
or click to browse · Up to 15 MB
Select fileAccepted: PDF
Your files are processed temporarily and deleted automatically — there is no general cloud storage. File deletion.
How to protect pdf
Simple steps — no software to install.
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Upload the confidential PDF
Records, contracts, reports.
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Encrypt with a strong password
Length is strength.
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Distribute safely
File and password travel separately.
Why use our Protect PDF
Secure & private
Files are encrypted in transit and deleted automatically after processing.
Fast results
Optimized processing returns your file in seconds.
Free to start
Core tools are free with daily limits — no install required.
Works anywhere
Runs in your browser on any device, anywhere in the world.
Encryption vs. hoping
Unencrypted attachments are readable at every hop — mail servers, backups, misdelivered inboxes. Encrypted ones surrender nothing anywhere: only the password holder reads the contents. For financial, medical and legal material, that is the appropriate standard.
Operate it properly
Strong password (length beats cleverness), separate delivery channel, and an archived unencrypted original for yourself — because encryption\'s honesty cuts both ways: we cannot recover a lost password, and neither can anyone else. Files are processed temporarily and deleted automatically — there is no general cloud storage.
- Content-level encryption
- Transit + storage confidentiality
- No password retention by us
- Free with fair daily limits
- Files auto-deleted