Protect PDF
Choose a PDF file or drag it here
Select PDF fileEncrypt PDF with AES-256 password protection. Secure your sensitive documents. Prevent unauthorized access and printing.
How to use Protect PDF
- Select the PDF document you want to protect.
- Enter a password that will be required to open the protected PDF.
- Create and download the encrypted PDF, then store the password safely.
Frequently Asked Questions
What encryption does this tool use?
The tool protects PDFs with AES-256 encryption.
Is my password stored?
No. Password protection is applied locally in your browser, and the password is not uploaded to InnoPDF.
Can I open the protected PDF without the password?
No. You need the password you set to open the protected result file.