Nitro Pro freezing and crashing

[William Voelp]

Nitro Pro can sometimes open most PDFs but does not allow me to edit or add signatures without freezing and crashing.

I found a thread, then did the items in the thread, and reinstalled it with no change.

I am stuck. I have a program that does not work for PDFs.

I am PC based, use chrome and Microsoft products. I can send serial number via a private message.

There is no way to open a trouble ticket or call for customer service for software that is $179? 

[Allain Umailin]

Hello @William Voelp,

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

Let us try some troubleshooting by referring to these steps:

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

x64   https://downloads.gonitro.com/professional_14.22.1.0/install-cleanup/install-cleanup.zip 

2. After rebooting, download and install the latest version of Visual Studio (vc_redist.x64.exe & vc_redist.x86.exe) then reboot your machine again. Visual Studio 2015, 2017, 2019, and 2022 all share the same redistributable files:

https://support.microsoft.com/en-gb/help/2977003/the-latest-supported-visual-c-downloads 

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 14.22 using this installer:

https://downloads.gonitro.com/professional_14.22.1.0/en/retail/nitro_pro14_ba_x64.msi

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. 

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"

5. After installation, you can activate it by opening Nitro PDF Pro, clicking on the Help tab > About Nitro Pro > Activate by entering your serial number.

6. Turning off User Account Control (UAC) for Nitro Pro. Here are two methods that you can follow:

a. Right-click the Nitro shortcut > Properties > Compatibility > Turn off any settings there.

b. 
i. Right-click > Troubleshoot Compatibility > Troubleshoot Program
ii. Check "The program requires additional permissions" > Next > Test the program...
iii. Wait for the program to launch > Next > Yes, save these settings for this program > Close

Thank you very much in advance and I am looking forward to hearing back from you.