PPM to PNG Converter

Convert PPM to PNG online, for free.



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Keep original size
Choose how to set the output size: keep the original, enter a width or height and we'll keep the aspect ratio, enter both dimensions, or scale by a percentage. Use "Keep original" to leave its dimensions unchanged.
Lossy Compression
Choose how much to compress the PNG. "Lossy" gives the smallest files at the cost of image quality; "Auto" picks a level for you.
Lower values give better compression (at the cost of image quality)
Makes the color you pick transparent in the PNG output. Use the color picker or enter a hex value (e.g. #FFFFFF).
Correctly orient the image using the gravity sensor data stored in EXIF
Strip the image of any profiles, EXIF, and comments to reduce size

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How to Convert PPM to PNG?

  1. Click the “Choose Files” button to select your PPM files.
  2. Click the “Convert to PNG” button to start the conversion.
  3. When the status change to “Done” click the “Download PNG” button

Easy to Use

Simply upload your PPM files and click the convert button. You can also batch convert PPM to PNG format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our PPM to PNG Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically deleted after 8 hours.


Portable Pixmap Format (PPM) is an uncompressed, raster-based colour image format from the Netpbm family. A PPM file stores a plain header followed by RGB values for every pixel, either as readable ASCII text or as binary data. Because nothing is compressed or discarded, PPM is deliberately simple for programs to read and write, at the cost of very large file sizes.

 

How to open a PPM file?

Most operating systems do not open PPM by default. XnView MP and GIMP both read it, and on Windows IrfanView opens PPM as well.

 

PPM is mainly used as an intermediate format in image-processing pipelines rather than for storage or sharing. Because of its size, convert PPM to a compressed format before publishing it online — try our PPM to JPG converter. Related Netpbm types are PBM (bitmap), PGM (greyscale), and PNM (any of the three).

 

Developed by: Jef Poskanzer / Netpbm Project

Initial Release: 1988


Portable Network Graphics (PNG) is a raster-based file type that compresses images for portability. PNG images can have RGB or RGBA colors and support transparency, which makes them perfect for use in icons, or graphic designs. PNG also supports animations with better transparency (try our GIF to APNG). The benefits of using PNG are Plus, PNG is an open format that uses lossless compression. 

How to open a PNG file?

Generally, PNG files will open in your operating system’s default image viewer. PNG files are also easily viewable on all web browsers. If you are having trouble opening PNG files, use our PNG to JPG, PNG to WebP, or PNG to BMP converters.


Alternative programs such as GIMP or Adobe Photoshop are useful for opening and editing PNG files. PNG files are a bit larger than other file types, so exercise caution when adding them to a web page. One interesting feature of PNG files is the ability to create transparency in the image, particularly a transparent background. 


Developed by: PNG Development Group

Initial Release: 1 October 1996

Useful links: 

LifeWire article on PNGs

Wiki article on PNGs

Related PNG Tools: 

Use our Color Picker to pick colors from images

FreeConvert.com can convert your PPM files to these other formats:

FreeConvert.com can convert your files to these related formats:


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