PNG to PNM Converter

Select files for conversion or just drag and drop them to the upload area

How to convert PNG files to PNM online?

Step 1.

Upload PNG-file

Click "Choose File" button to select a png file on your computer. PNG file size can be up to 50 Mb.
Step 2.

Convert PNG to PNM

Click "Convert" button to start conversion.
Step 3.

Download your PNM

When the conversion process is complete, you can download the PNM file.

Information about PNG and PNM file formats

Name PNG PNM
Full name PNG - Portable Network Graphics Portable Any Map Image
File extension .png .pnm
MIME type image/png image/x‑portable‑bitmap, image/x‑portable‑graymap, image/x‑portable‑pixmap, image/x‑portable‑anymap
Developed by PNG Development Group Jef Poskanzer
Type of format lossless bitmap image format Image
Description Portable Network Graphics (PNG) is a raster graphics file format that supports lossless data compression. PNG was created as an improved, non-patented replacement for Graphics Interchange Format (GIF), and is the most used lossless image compression format on the Internet. PNG itself does not support animation at all. MNG is an extension to PNG that does; it was designed by members of the PNG Group. A bitmap image in the Portable Any Map format that was originally developed for processing and storing several types of monochrome and color images without compression as well as grayscale images. Bitmap graphics data in a PNM file are stored using ASCII or binary structure.
Technical details PNG supports palette-based images (with palettes of 24-bit RGB or 32-bit RGBA colors), grayscale images (with or without alpha channel), and full-color non-palette-based RGB[A] images (with or without alpha channel). PNG was designed for transferring images on the Internet, not for professional-quality print graphics, and therefore does not support non-RGB color spaces such as CMYK.
File conversion PNG conversion PNM conversion
Associated programs Adobe Photoshop, Paint Shop Pro, the GIMP, GraphicConverter, Helicon Filter, ImageMagick, Inkscape, IrfanView, Pixel image editor, Paint.NET, Xara Photo & Graphic Designer. GIMP, ImageMagick, Newera Graphics Converter Pro, The MathWorks MATLAB, Wolfram Research Mathematica, XnView
Wiki https://en.wikipedia.org/wiki/Portable_Network_Graphics https://en.wikipedia.org/wiki/Netpbm_format