: You will typically need your email address and order details. If you are an enterprise customer, you may need to contact your account executive or submit a Nitro Support ticket for assistance. 3. Check the Software Settings (Partial View)

Look for a label on the back of the envelope containing the installation CD.

For older versions of Nitro Pro (v12 and earlier), the serial number might be stored in the Windows Registry.

: Nitro removed the full serial number key from the registry in v13 and newer builds of v12 to prevent license theft. 5. Check Physical Retail Packaging

A window will appear showing the version and a partial serial number (e.g., 504945XXXXXXXXXXXX ). 4. Locate via Windows Registry (Older Versions Only)

The most reliable way to find your serial number is to search the inbox of the email address used for the purchase.

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