BMP to PPM Converter

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

How to convert BMP files to PPM online?

Step 1.

Upload BMP-file

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

Convert BMP to PPM

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

Download your PPM

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

Information about BMP and PPM file formats

Name BMP PPM
Full name BMP - Microsoft Windows bitmap Portable Pixmap file
File extension .bmp, .dib .ppm
MIME type image/bmp, image/x-bmp image/x-ppm, image/x-portable-pixmap
Developed by Microsoft Jef Poskanzer
Type of format Raster graphics Image File
Description The BMP file format, also known as bitmap image file or device independent bitmap (DIB) file format or simply a bitmap, is a raster graphics image file format used to store bitmap digital images, independently of the display device, especially on Microsoft Windows and OS/2 operating systems. The 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 cant 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.
Technical details The bitmap image file consists of fixed-size structures as well as variable-size structures appearing in a predetermined sequence. Many different versions of some of these structures can appear in the file, due to the long evolution of this file format. A 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: A magic number for identifying the file type. A ppm image's magic number is the two characters P6. Whitespace (blanks, TABs, CRs, LFs). A width, formatted as ASCII characters in decimal. Whitespace. A height, again in ASCII decimal. Whitespace. The maximum color value (Maxval), again in ASCII decimal. Must be less than 65536 and more than zero. A single whitespace character (usually a newline). 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 Microsoft Paint, Adobe Photoshop, Paint Shop Pro, the GIMP, GraphicConverter, Helicon Filter, ImageMagick, Inkscape, IrfanView, Pixel image editor, Paint.NET. Adobe Photoshop, Corel Draw, GIMP, Netpbm
Wiki https://en.wikipedia.org/wiki/BMP_file_format https://en.wikipedia.org/wiki/Netpbm_format