Redactions inverting pages in pdf to black background and white text

[Jo Newport]

I've had this issue a few times in the past where I have a large pdf document with a lot of redactions in it. When I click on the 'apply all redactions' button the redactions are made but then the pages of the document turn from white background with black text to black background with white text, making it completely useless. My firm's IT department don't know why this happens, and it's not all of the time, but when it happens there's no way to stop it. Any help or reasons why it's doing it, or how to avoid it happening, would be much appreciated! 

[Allain Umailin]

Hello @Jo Newport,

Thank you for reaching out to us through our Community Forums.

For the sake of initial troubleshooting of this redaction issue, we recommend that you repair your Nitro Pro. Please reboot your computer before and after running this repair to ensure that there are no ties to Nitro still active in the background. You may refer to this article: https://kb.gonitro.com/knowledgebase#/search/repair/000004603 

If Modify button is greyed-out, please refer to this screen-cast that will teach you on how to go to Control Panel > All Control Panel Items > Programs and Features and repair your Nitro Pro program or any application installed on your system: https://www.screencast.com/t/rvpUkq40c

If repairing didn't help, could you please provide the following?:

 

-Is this a new issue or has it occurred since after installing Nitro Pro? Any changes you are aware of before this happened (e.g. Windows Updates)?
-The serial number of your Nitro Pro. To send it via private message, hover your mouse on top of my name 'AllainU' and select 'Message'. This matters because our business installers are different from the online ones.
-Build of Nitro Pro are you working with. You can find this out by clicking on 'About Nitro Pro' under the Help tab (format is 13.X.X.X, e.g. 13.2.3.26) or you can go to Control Panel > Programs and Features.
-Does this happen with every file? If it is a single file, please send us the sample file (with sensitive information extracted) by sending me a private message so I can replicate it on my end. 
-Where are the files saved (local, a shared drive or an external drive) when you are trying to _? Can you check if you have the same issue when the file is saved locally?
-A screen shot that describes this rare behavior. To find out how to take a screen shot using Snipping Tool, check out this link: https://support.microsoft.com/en-us/windows/use-snipping-tool-to-capture-screenshots-00246869-1843-655f-f220-97299b865f6b 

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