Pnm extension is associated with PBM Portable Any Map Graphic Bitmap. You can open pnm files with xnView software.
Pnm extension stands for image files. These file formats are used with various tools. You have chance to open pnm files with XnView software. It is a free software that you can download via software downloading web pages. To get detailed information about this program, please check the following link.
What to use PNM
which page related to PNM file
PNM Related Searches
You can check related links about PNM fileextension.