Saving to RTF file
Saving to RTF file is as easy as clicking one button after you have pleaded your test and review the output
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Now, NGW RegEx Generator was it really designed to work with images in RTF files. The design is primarily to help developers with RegEx coding. However, NGW RegEx Generator is able to save your image from the original to the saved RTF file.
Let's take a quick look at a test file I have. Below is an RTF file loaded.

Now, in this example I'm just going to remove and mask the credit cards numbers. So, now I'll click the "Test Removal" button. As you can see, the image is transferred to the output results area.

Now we just need to click on the Save RTF button and save the RTF file to a location of our choosing and give the file name. A temporary file name will be entered into the save dialog but you can change it to whatever you wish.