mr Balaji

[R S Balaji CA]

I have already activated the licence, for Nitro Pro. But after a month of installation, now the nitro software requires me to generate new activation code certificate and reinstall. I am getting the copiable link of Licence, but unable to activate the same in www.nitro.com/activation page, it provides me an error message as "Invalid date".

Help to resolve the same and reactivate the licence.

[Allain Umailin]

Hello @R S Balaji CA,

Thank you for reaching out to us through our Community Forums and our sincere apologies for this inconvenience.

To further assist you, let us try some troubleshooting by referring to these steps:

1. Clear the content of the directory under C:\users\your_username\Appdata\local\temp. For whatever reason, not all temp files automatically remove themselves and is NOT usually caused by Nitro Pro files. Kindly note Appdata folder is hidden and to unhide it, please refer to this article https://cybertext.wordpress.com/2012/05/29/cant-see-the-appdata-folder/ 

2. Download and run our Clean Up utility to uninstall your Nitro Pro:  http://install.nitropdf.com/professional_13263505/install-cleanup/install-cleanup.zip

NOTE: This clean-up tool will erase any existing signature files within Nitro so please save them to another location before using the clean-up tool in order to keep them. Please see this link for backing up custom stamps/signatures: https://kb.gonitro.com/knowledgebase#/search/stamps/000004307 

3. Clear all your downloads folder or delete all downloaded Nitro installers. This step is important because we noticed that if you are saving all the installers and you download them in the same folder (like the downloads folder), the EXE can pick up any MSI installer in that folder and you may pick-up one of the older builds instead of the newly downloaded package.

4. Download and install Nitro Pro 13.26 using below offline installers:

x32 http://install.nitropdf.com/professional_13263505/en/retail/nitro_pro13_ba_x86.msi
x64 http://install.nitropdf.com/professional_13263505/en/retail/nitro_pro13_ba_x64.msi

If you are not sure which to pick, this will help: https://kb.gonitro.com/knowledgebase#/search/64/000003790 

5. After installation, you can activate by opening Nitro Pro, clicking on the Help tab > About Nitro Pro > Activate by entering your serial number.
 
Thank you very much in advance and I am looking forward to hearing back from you.