PDF Security
Protect PDF - Add Password to PDF | CarePDF
Password protect your PDF files with strong encryption. Free online tool to secure PDFs with passwords and set permissions for printing, copying, and editing.
Drop your files here
or click to browse
.pdf
How to Protect PDF with Password
1. Upload PDF
Select the PDF you want to protect.
2. Set Password
Enter a strong password and set permissions.
3. Download
Get your password-protected PDF.
Features
Password Protection
Require a password to open the PDF document.
Strong Encryption
128-bit AES encryption protects your PDF from unauthorized access.
Permission Controls
Control printing, copying, editing, and form filling.
Prevent Copying
Block users from copying text and images.
Print Control
Allow or prevent printing of the document.
100% Secure
Files are encrypted during processing and deleted within 1 hour.
Frequently Asked Questions
How do I password protect a PDF?
Upload your PDF, enter a password, optionally set permissions, click Protect, and download your secured PDF.
What permissions can I set?
You can control: printing, copying text and images, editing content, and filling forms.
How secure is the encryption?
We use AES-128 encryption, which is industry standard and virtually unbreakable with current technology.
What if I forget the password?
We do not store passwords. If you forget it, use our Unlock PDF tool with the correct password. Keep your password safe!
Can I remove the password later?
Yes, use our Unlock PDF tool with the correct password to remove protection.
Is PDF protection free?
Yes, completely free with no hidden costs or registration required.
Are my files secure during processing?
Absolutely. 256-bit SSL encryption during upload and automatic deletion within 1 hour.
Can I protect multiple PDFs?
Currently, one file at a time. Upload, protect, download, then repeat for additional files.