Encrypt PDF
Password-protect PDF files in your browser
Upload + encrypt
Only PDF files are supported.
Large files may take longer to process. Keep this tab open until the download starts.
Use a strong password you can remember later.
Encrypt PDF Tool
Encrypt PDF files online by adding a password. The file stays in your browser while the encrypted copy is prepared for download.
How to Password Protect a PDF
- Upload your PDF file.
- Enter a password to secure it.
- Click Encrypt PDF to download the protected file.
Why Encrypt PDFs?
- Prevent unauthorized access to sensitive documents.
- Protect personal, financial, or confidential data.
- Share PDFs safely with a password you control.
Tool Features
- Encrypt PDFs without uploading them to a server.
- Works on desktop and mobile browsers.
- Fast processing for small and medium-size PDFs.
Do This Locally (CLI)
# Encrypt a PDF with qpdf
qpdf --encrypt "$USER_PASSWORD" "$OWNER_PASSWORD" 256 -- input.pdf output.pdfFAQ
Can I remove the password from an encrypted PDF?
Yes, if you know the password, you can remove it with a PDF password remover tool.
Is it safe to encrypt my PDF online?
Yes. The tool runs in your browser and does not upload your file.
What types of PDFs can I encrypt?
You can encrypt any standard PDF file.