Nitro PDF License Deactivating

On May 5, 2025, Nitro Software, Inc. sent an email to perpetual license holders, stating they would be revoking our license remotely.

Background

Nitro Software, Inc. offered perpetual licenses, which were paid for, and is now revoking them from users. They now offer a subscription.

[Incident]

On May 5, 2025, Nitro sent the following email to perpetual license holders:

We are reaching out to notify you that your Nitro PDF for Windows license(s) with the serial number(s) listed below will be deactivated within the next 30 days and no longer supported. Following deactivation, you will be unable to access advanced functionality, including PDF editing and conversion.

Serial number: --redacted--------

We apologize for any inconvenience this may cause, but to uphold our commitment to security, it is necessary to phase out the use of deprecating technology.

Please accept an upgrade to Nitro PDF Standard, our latest PDF solution with expanded features and benefits, at a significantly discounted price of USD $50.00 per year (price may vary by region). We have locked in this price through the first three years of your subscription, applicable for up to 20 licenses.

Nitro PDF Standard includes several advantages and enhancements, such as continuous updates, flexible device access, easy activation, and access to the latest AI and product innovations.

To upgrade, please visit https://www.gonitro.com/support/upgrade.  

Thank you for being a Nitro customer and we are committed to making this transition as smooth as possible for you.

References

https://web.archive.org/web/20250815162935/https://community.gonitro.com/topic/21958-license-deactivating/ you can see here a customer complaining about this on the forums, and official Nitro response, stating "These versions are no longer supported due to security compliance."