What is .PDN file extension?
.PDN file extension is a known file type. This section tells you everything you need to know about this extension.
Bitmap image format used by paint.net, a free photo-editing program for Windows; supports multiple layers, transparency, image effects, and different bit-depths; can only be opened with paint.net, but can be exported by paint.net to a more standard format.
You can see a list of software programs below that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.