PPM to MP4 Converter
Select files for conversion or just drag and drop them to the upload area
How to convert PPM files to MP4 online?
Click "Choose File" button to select a ppm file on your computer. PPM file size can be up to 50 Mb.
Convert PPM to MP4
Click "Convert" button to start conversion.
Download your MP4
When the conversion process is complete, you can download the MP4 file.
Information about PPM and MP4 file formats
|Full name||Portable Pixmap file||MP4 - MPEG-4 Part 14|
|File extension||.ppm||.mp4, .m4a, .m4p, .m4b, .m4r, .m4v|
|MIME type||image/x-ppm, image/x-portable-pixmap||video/mp4|
|Developed by||Jef Poskanzer||International Organization for Standardization|
|Type of format||Image File||Media container|
|Description||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.||MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet.MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet.|
|Technical details||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.||Most kinds of data can be embedded in MPEG-4 Part 14 files through private streams. A separate hint track is used to include streaming information in the file. The registered codecs for MPEG-4 Part 12-based files are published on the website of MP4 Registration authority (mp4ra.org).|
|File conversion||PPM conversion||MP4 conversion|
|Associated programs||Adobe Photoshop, Corel Draw, GIMP, Netpbm||Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player|