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404 Page Not Found

Jorgen Larsson

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Jorgen Larsson

reinstall my Nitro,,,, have all the stuf y need as serial and so on,,,,, but not 

i have tryed everythin in my power but the sam vomes upp all the time... trail has ended... i can log in to the account but that dont help, 

And this makes me ,,,,,, ,,, I dud BUY Nitro PRO and now ir't looks like i have to buy again,, thats a good idea to make folks buy your stuf 2 times. 

Try to go to your activating page http 404 page not found,,, and then the same when i open this window to get a new license from you,,, 404 page not found,,,,

I realy dont like this and you dont make it easy for users to use nitro,,, a more easy way is log in to your account and then just manage it all from there,,,,

And why are y so hard to get a hold of? 

Try for fre work and of course buy works but,,,,,, 

and now my nitro is not active??? 

naa maby buy adobe for this is not good for me as a client



404 Page Not Found

The page you are looking for might have been removed or is temporarily unavailable

its been like this a week now,,,,,



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  • Allain Umailin changed the title to 404 Page Not Found
  • Official Nitronaut
Allain Umailin

Hello @Jorgen Larsson,

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

I believe you have installed an older version and with this, we want to make you aware of the change that may affect its activation performance.

To further assist you, let us ensure you have the correct version by performing these steps:

1. Download and run our Clean Up utility to uninstall your current Nitro Pro then reboot your machine: 


2. 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.

3. Download and install Nitro PDF Pro 13.49 using below offline MSI installers:
x32 http://install.nitropdf.com/professional_13492993/en/retail/nitro_pro13_ba_x86.msi 
x64 http://install.nitropdf.com/professional_13492993/en/retail/nitro_pro13_ba_x64.msi

To know if you have 32-bit or 64-bit, please refer to this article:

Important: If you are using Chrome or any of the Chromium-based browsers (e.g., Vivaldi, etc.) and you are unable to access the above installer links, you're more than likely experiencing the results of a new security feature that was silently pushed out to the browsers, which blocks .exe/.msi/etc downloads without any visible error or prompt on the browser's frontend user space. In order to bypass this, please try these steps:

a. Right-click the link you're trying to download, and select "Save link as..."
b. Choose your save location and select "Save"
c. On the bottom edge of your browser window, the Downloads bar should now appear and the file will show up with a red error icon, attempting to block the download. Press the caret button and select "Keep"

4. After installation, you can activate by opening Nitro Pro, clicking on the Help tab > About Nitro Pro > Activate by entering your serial number 50492x-xxxxxx-377663

Thank you for choosing Nitro and I hope this helps.

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