Convert PNG to CGM Online — Free
Fast, free PNG to CGM converter. No registration required.
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How to Convert
Upload your .png file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .cgm file when it's ready.
What is PNG?
PNG is a lossless image format that supports transparency. It's ideal for graphics, logos, and images requiring sharp edges or transparent backgrounds.
Format Details
- Full Name
- Portable Network Graphics
- Extension
- .png
Key Features
- Lossless quality
- Transparency support
- Sharp edges
- Web optimized
What is CGM?
CGM (Computer Graphics Metafile) is an ISO standard (ISO 8632) for vector and raster graphics interchange. It is widely used in technical documentation, aviation (ATA iSpec 2200), defense, and engineering sectors for platform-independent diagram storage.
Format Details
- Full Name
- Computer Graphics Metafile
- Extension
- .cgm
Key Features
- ISO standard
- Vector and raster
- Aviation standard
- Technical drawings
PNG vs CGM
| Feature | PNG | CGM |
|---|---|---|
| Full Name | Portable Network Graphics | Computer Graphics Metafile |
| Extension | .png | .cgm |
| Best For | Lossless quality | ISO standard |