.PNM File Extension

File Type:
Portable Any Map Image

Having trouble opening .pnm extension? Don't panic! This page explains what pnm files are as well as suggests programs you may use to open pnm files. You can download these programs through this page.

What is a PNM file?

Pnm file extension has Portable Any Map Image file type, which is associated with the "raster image files" category.

These are bitmap images in the Portable Any Map format. This format was created to save several types of portable grayscale, color, and monochrome images. PNM files can include raster graphics information saved in .PPM, .PGM, and .PBM files. PNM files can include one image. This format does not utilize any form of compression. 

To learn how you can open the given file, read the information below.

pnm file icon
File Type:
Portable Any Map Image
Raster Image Files

How to open PNM file?

Double click the pnm file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .pnm extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the pnm extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the pnm file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open PNM files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the pnm file as well. Download Universal File Viewer for your OS.

Download for Win
Secure download
Download for Mac
Secure download