Open Pgm Files

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How to open PGM file? After double-clicking on the unknown file icon, the system should open it in the default software that supports it. If this does not happen, download and install the GIMP software and then manually associate the file with it. Dec 05, 2018 If your PGM file is related to a piece of hardware on your computer, you might need to update your device drivers associated with that hardware in order to open it. This problem is commonly related to multimedia file types that depend upon a piece of hardware inside of your computer to be successfully opened, such as a sound card or graphics card.

14 applications in this hubLast updated: Dec 8th 2020, 04:51 GMT

PGM is an acronym for

Portable Gray Map and it represents a graphic file format initially developed to facilitate graphic data exchange between multiple platforms. Even though PGM files are typically stored in ASCII text format, they also feature a binary representation.
PGM files contain header information as well as a grid of numbers which represent shades of gray from black (0) to white (up to 65,536).
In order to be able to access PGM pictures, users will need to choose a specialized graphic viewer.

filed under:PGM, Portable Gray Map, Open, Raster, Image, View

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Applications

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Home / File format / pgm
.pgm
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PGM file format was developed alongside the open-source Netpbm package of graphics program. Developed by Jef Poskanzer in 1988, PGM was a format for storing grayscale images and supporting bitmap. The PGM file format is forward compatible with recent graphics editing software like Corel PaintShop Pro X4, ACDSee Photo Manager 14, and ACD Systems Canvas 15. Being a plain text format, PGM can be edited using any available text editor, and thus survives the quintessential changes that image files undergo when transmitted via email. PGM files come in two types, only differentiated by magic numbers – P2 and P5, which helps graphics editor software identify the data encryption standard.
Portable Gray Map Images can be stored away with each pixel taking up memory space of either 8 or 16 bits. There are two major sections in the plain text string of a PGM file – the header and image data. The header starts with the magic number, followed by characters indicating image width, image height, maximum grayscale shade value – never exceeding 65.536, all sandwiched by whitespaces. Though used mainly on the UNIX-based operating system, being open-source has earned the PGM file compatibility with macOS and Windows.
ACD System Canvas 15
Corel PaintShop Pro X8
Inkscape
Jef Poskanzer

pgm converter

pgm converter