File extension PGM
| File type | Portable Graymap File Format |
| Developer | N/A |
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What is a PGM file?
PGM is raster graphics grayscale file. PGM files use two types of encoding, 8-bit and 16-bit, and can be saved in either binary or ASCII text format.
PGM files consists of grid of numbers from 0 to 65 536 that represent different shades of gray. PGM file header defines the type of image representation (text or binary) and image dimensions. PGM files can be converted into other image formats using a dedicated tool, for example multiplatform application Netpbm.
Program(s) that can open the .PGM file
Windows
Mac OS
How to open PGM files
If you cannot open the PGM file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports PGM among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the PGM file can be found in the table. Now just download and install the appropriate application.
Possible problems with the PGM format files
The inability to open and operate the PGM file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the Portable Graymap File Format file. Below is a list of possible problems.
- Corruption of a PGM file which is being opened
- Incorrect links to the PGM file in registry entries.
- Accidental deletion of the description of the PGM from the Windows registry
- Incomplete installation of an application that supports the PGM format
- The PGM file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the PGM file.
- Drivers of equipment used by the computer to open a PGM file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the PGM file should operate with your programs without any problem. If the problem with the PGM file has not been solved, it may be due to the fact that in this case there is also another rare problem with the PGM file. In this case, the only you can do is to ask for assistance of a professional staff.
This extension
can be converted to:
How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.PGM) you have two ways to do it. The first and the easiest one is to right-click on the selected PGM file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the PGM file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. PGM) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.