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File converter / Images / PGM

Online PGM converter

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Choose file to convert to .pgm
or drag and drop file

You can convert pictures and photos to PGM format with free online converter.

How to convert to pgm
Step 1

Upload file

Select file, which you want to convert from your computer, Google Drive, Dropbox or drag and drop it on the page
Step 2

Select «to pgm»

Select pgm or any other format, which you want to convert (more 200 supported formats)
Step 3

Download your pgm file

Wait till your file will be converted and click download pgm -file

Online and free pgm converter

Fast and easy
Just drop your pgm files on the page and you can convert it to more than 250 different file formats without registration, giving an email or watermark.
Don't worry about security.
We delete uploaded pgm files instantly and converted files after 24 hours. All files transfer with secured an advanced level of SSL encryption.
All in the cloud
You don't need to install any software. All pgm conversions make in the cloud and don't use any resources of your computer.
Portable Gray Map Image
File extension .pgm
File category images
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.
Programs
ACD Systems ACDSee 18
ACD System Canvas 15
Adobe Photoshop with plug-in
Corel PaintShop Pro X8
GIMP
Inkscape
Netpbm
Developer Jef Poskanzer
MIME type
application/octet-stream

FAQ

❓ How can I convert pgm?
Firstly, select a pgm file you want to convert or drag and drop it. Secondly, select a format you want to convert your file to. Then click convert and wait until your file is converted
⏳ How long should I wait to convert pgm?
Images conversion usually takes a few seconds. You will convert pgm very quickly.
🛡️ Is it secure to convert pgm on OnlineConvertFree?
Sure! We delete your uploaded and converted files, so nobody has access to your information. All types of conversion on OnlineConvertFree (including pgm) is 100% safe.
📱 Can I convert pgm without software installation?
Absolutely! OnlineConvertFree doesn’t require installation. You can convert any files (including pgm) online on your computer or mobile.