marcoz 0 Report post Posted December 7, 2019 (edited) Hi, I downloaded Nitro Pro V13 and keyed the serial of the V12 I have upgraded to, but it says the serial number is not valid This is what I received when I upgraded to V12 Edited December 9, 2019 by Leslie V. Confidential information edited Share this post Link to post Share on other sites
Leslie V. 0 Report post Posted December 9, 2019 Hello @marcoz, Thank you for your message! Your Nitro Pro 12 key will only work on version 12. To upgrade to version 13, please proceed to the following web page, https://www.gonitro.com/pro/upgrade Enter your serial number for Nitro Pro 12 and follow the prompts to receive a new Nitro Pro 13 serial key and installation files. Let me know how you go. Share this post Link to post Share on other sites
marcoz 0 Report post Posted December 10, 2019 Hi Leslie, thank you All done Regards Marco Share this post Link to post Share on other sites