To open your password-protected PAN card PDF file, you'll need the password format and your date of birth. The format used by the government to generate your PAN card PDF file password is DDMMYYYY format. For instance, if your date of birth is 02nd February 1992, the password would be 02021992. If you encounter issues accessing the PDF, check the Income Tax Department website for help with downloading and using your e-PAN card.