> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pdfnoodle.com/llms.txt
> Use this file to discover all available pages before exploring further.

# User authentication

### How does One Time Password (OTP) work?

**Step 01: Enter Your Email:**

Type in your email address, and we’ll send a message to your inbox with a temporary code.

<img src="https://mintcdn.com/pdforge/vhgKnJpK1U2pPKtX/images/platform/how-does-one-time-password-otp-work-1.gif?s=7535785542f426e900716d80ab57b2c4" alt="" width="1144" height="720" data-path="images/platform/how-does-one-time-password-otp-work-1.gif" />

**Step 02: Use the Code:**

You can either copy the code and paste it into the “Temporary Password” field or click on “Sign in” to trigger the process automatically.

<img src="https://mintcdn.com/pdforge/vhgKnJpK1U2pPKtX/images/platform/how-does-one-time-password-otp-work-1.png?fit=max&auto=format&n=vhgKnJpK1U2pPKtX&q=85&s=8b805b778bbfed26abeee0b8d2f01725" alt="" width="737" height="463" data-path="images/platform/how-does-one-time-password-otp-work-1.png" />

### What if I didn't receive the email with the temporary password?

**• Check Your Spam Folder:**

If more than a minute has passed and you haven’t received the email, please check your spam folder. Look for an email with the subject “**your pdf noodle temporary token**.”

**• Still No Email?**

If you still can’t find the email, feel free to contact us at [support@pdfnoodle.com](mailto:support@pdforge.com), and we’ll help you out!