What is a PDF?
Know what a PDF is and feel calm when one shows up.
A PDF is a type of file on a computer. It holds a document, like a letter or a bill.
The nice thing is it always looks the same. The words and pictures stay in place when you open it.
You will often see PDFs for bills, forms, and official letters. They are very common and safe to open from people you trust.
- When you get a PDF, look for a file with ".pdf" at the end of its name.
- Click or tap it once to open it.
- If you are not sure what it says, you can ask ChatGPT to explain it.
I have a PDF that I do not fully understand. Can you explain what a PDF is and how I open one on my computer or phone?
Paste the message into ChatGPT, then fill in any blanks before you send it. ChatGPT opens in a new tab. Opening it does not send the message.

A PDF you got by email is fine to open if you know and trust the sender.

