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PPM to PNG

Convert PPM to PNG - Convert your file now - online and free - this page also contains information on the PPM and PNG file extensions.


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File extension.ppm
CategoryImage File
DescriptionThe portable pixmap format (PPM) is an image format designed to be easily exchanged between platforms which is used by Netpbm - an open-source package of graphics programs and a programming library, used mainly in the Unix world. The format is a lowest common denominator color image file format and is highly inefficient, containing a lot of information the human eye can’t even discern. The precursor to the PPM format was the PBM format which was invented by Jef Poskanzer in the 1980s as a format that allowed monochrome bitmaps to be transmitted within an email message as plain ASCII text, allowing it to survive any changes in text formatting. By the end of 1988, Poskanzer had developed the PGM and PPM formats along with their associated tools and added them to Pbmplus. The final release of Pbmplus was December 10, 1991.
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Technical DetailsA PPM file consists of a sequence of one or more PPM images. There are no data, delimiters, or padding before, after, or between images. Each PPM image consists of the following:
  1. A magic number for identifying the file type. A ppm image's magic number is the two characters P6.
  2. Whitespace (blanks, TABs, CRs, LFs).
  3. A width, formatted as ASCII characters in decimal.
  4. Whitespace.
  5. A height, again in ASCII decimal
  6. 6. Whitespace.
  7. The maximum color value (Maxval), again in ASCII decimal. Must be less than 65536 and more than zero.
  8. A single whitespace character (usually a newline).
  9. A raster of Height rows, in order from top to bottom. Each row consists of Width pixels, in order from left to right. Each pixel is a triplet of red, green, and blue samples, in that order. Each sample is represented in pure binary by either 1 or 2 bytes. If the Maxval is less than 256, it is 1 byte. Otherwise, it is 2 bytes. The most significant byte is first.
There is actually another version of the PPM format that is fairly rare: plain PPM format.
Associated programs Adobe Photoshop
Corel Draw
GIMP
Netpbm
Developed by Jef Poskanzer
MIME type  image/x-ppm
image/x‑portable‑pixmap
Useful links NetPBM homepage
What is the NetPBM format ?
Convert PPM file
 

Convert PPM file

Using Zamzar it is possible to convert PPM files to a variety of other formats:

ppm to ai (Adobe Illustrator Artwork)
ppm to bmp (Windows bitmap)
ppm to eps (Encapsulated PostScript)
ppm to gif (Compuserve graphics interchange)
ppm to jpg (JPEG compliant image)
ppm to pcx (Paintbrush Bitmap Image)
ppm to pdf (Portable Document Format)
ppm to png (Portable Network Graphic)
ppm to tga (Truevision Targa Graphic)
ppm to tiff (Tagged image file format)
ppm to wbmp (Wireless Bitmap File Format)
ppm to webp (Lossily compressed image file)

PPM to PNG - Convert file now

Convert PPM to PNG

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File extension.png
CategoryImage File
DescriptionPNG pronounced ping is a format for storing bitmapped (raster) images on computers. It was created originally to replace the GIF file format when it was announced that the companies who created the GIF format wanted royalties. PNG uses indexed colors and lossless compression (like a .GIF file), but without those copyright limitations; it cannot be animated like a GIF image.
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Technical DetailsPNG images are in many ways better than .GIF as they also include an 8-bit transparency channel, which allows the colors in the image to fade from opaque to transparent; GIF images only support fully opaque or fully transparent pixels. PNG supports palettes of 24-bit RGB colors, RGB images or greyscale or RGB images. PNG was intended to be able to transfer images on the Internet, not professional graphics, and so does not support other colour spaces (such as CMYK).
Associated programs Apple Preview
Corel Paint Shop Pro
GIMP - The GNU Image Manipulation Program (LINUX)
Microsoft Windows Photo Gallery Viewer
Safari
Developed by PNG Development Group
MIME type  image/png
Useful links Further information on PNG Files
How can I open a PNG file ?
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