PNG stands for portable network graphics. It is the raster graphics format associated with the .png filename extension. Unlike GIF format, the limitation of 256 colors does not hold with the PNG format. In fact this among other reasons was the motivation behind development of the PNG format to improve upon the GIF format. The PNG format however uses a single image format and thus does not support animations. Because the format was engineered to ease the distribution of graphic files across computer networks it is also not well suited for professional graphics.
A .cgm extension is used by CAD (Computer Aided Design) software for its computer graphics metafile format. The .cgm file extension format enables interchange of graphical data for the computer representation of 2D graphics that are independent of a specific device, platform, system or application. The CGM file format is a universally accepted format for text, raster graphics and 2D vector graphics. The CGM format files are widely used by aviation, engineering and other applications related to the technical field.
FreeFileConvert uses tuned encoding for PNG to CGM conversions, preserving clarity while trimming file size. Finished audio streams instantly across phones, tablets, desktops, and modern browsers without extra tweaks.
Upload PNG files from desktop, tablet, or cloud storage, queue multiple jobs, and let the converter finish autonomously. Return whenever convenient to download synchronized CGM results on any device you rely on.
Process up to 5 files sized 1000 MB per batch without splitting queues manually. Mixed-format uploads convert together, producing consistent CGM audio with dependable progress tracking.
The PNG formation become a published ISO standard in 2004 as ISO/IEC 15948, although it was formally accepted for use by the internet engineering steering group in 1996. The PNG format has broad support for various color palettes including 24 bit RGB, 32 RGBA, and grayscale with optional support for transparency. The lossless data compression method used by PNG is DEFLATE.
A .cgm extension file format is compatible with any operating system. These are vector graphics format files that can support three encoding methods. One of these methods is the clear text encoding that allows reading and modification of a file using a text editor.
Upload your image file in the PNG format from your device, Dropbox, or Google Drive.
Select CGM as the output format and click Convert. Adjust optional settings if needed.
Download the converted vector file. Each file stays available for up to 5 downloads.