File converter  /  Images  /  PGM

Online PGM converter

Converting pictures and photos to pgm format is simple and free with our online converter.

Converting your file to pgm is easy with these steps.

Icon of «Upload file»
Step 1

Upload file

You can select the file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.
Icon of «Select «to pgm»»
Step 2

Select «to pgm»

Choose pgm or any of the other 200+ supported formats you'd like to convert to.
Icon of «Download your pgm file»
Step 3

Download your pgm file

Please wait for the conversion to complete, then click on the download button to obtain your converted file in the pgm format.

A free and online converter for pgm files.

Fast and easy
Simply drag and drop your pgm files onto the webpage, and you'll be able to convert them to over 250 different file formats, all without having to register, provide an email address, or include a watermark.
You don't need to worry about security.
As soon as you upload your pgm files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.
Everything is stored in the cloud.
You don't have to go through the hassle of installing any software. We handle all pgm conversions in the cloud, which means that none of your computer's resources will be used in the process.

Portable Gray Map Image

Extension.pgm
Category🔵 images
Programs
🔵 ACD Systems ACDSee 18
🔵 ACD System Canvas 15
🔵 Adobe Photoshop with plug-in
🔵 Corel PaintShop Pro X8
🔵 GIMP
🔵 Inkscape
🔵 Netpbm
Description🔵 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.
Technical details🔵 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.
Developer🔵 Jef Poskanzer
MIME type
🔵 application/octet-stream

FAQ

❓ How do I change pgm?
To get started, either pick a file you want to convert from pgm and select it or drag and drop it into the conversion tool. Next, select the desired format that you wish to convert your file to. Once you have selected the format, click the "convert" button and wait for the tool to finish converting your file.
⏳ What is the estimated time it will take to convert pgm?
Typically, image conversions only take a few seconds, so you can expect a speedy conversion when changing pgm
🛡️ Can I trust OnlineConvertFree to convert pgm securely?
Absolutely! We take your security seriously, and guarantee the protection of your uploaded and converted files. No one will have access to your information since we delete all files once the conversion process is complete. You can trust that all types of conversions, including pgm, are 100% safe on OnlineConvertFree.
📱 Is it possible to convert pgm without having to install any software?
Yes, that's right! OnlineConvertFree doesn't require any installation, which means that you can convert any files, including pgm, on your computer or mobile device, completely online.