The NMP image format is associated with NeoPaint, a raster graphics processor developed by NeoSoft. NMP files have similar functions and features with NPM files, both representing "mask images", i.e. black-and-white digital copies of an original image, used for processing purposes. NMP files are considered rare and are probably difficult to open using regular image viewers.
The quick and simple way to handle your files is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch conversions. As you will soon realize, reaConverter will help you avoid spending countless hours trying to figure out how to convert multiple NMP files as once.
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