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Convert to KML Superoverlay

Convert PNG to KML Superoverlay

Convert PNG (.png) to KML Superoverlay (.kml) online for free. Fast, accurate geospatial format conversion with CRS reprojection.

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Upload your PNG file and get KML Superoverlay output in seconds.

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About PNG

Portable Network Graphics (PNG) is a lossless raster image format. When georeferenced (with a world file), it can serve as a lightweight map tile or overlay.

Extensions: .png

Software: Any image viewer, QGIS, Leaflet, OpenLayers, MapServer

Limitations: Limited to 4 bands (RGBA). No embedded CRS metadata (requires world file). Lossless compression may not reduce file size significantly.

About KML Superoverlay

KML Superoverlay is a KML-based format for tiled raster imagery that enables efficient loading of large images in Google Earth through level-of-detail management.

Extensions: .kml

Software: Google Earth, QGIS, GDAL, MapTiler, Global Mapper

Limitations: Requires WGS 84. Creates many tile files. Primarily for visualization, not analysis.

How to Convert PNG to KML Superoverlay

Upload your PNG file (.png)
Review detected layers, features, and coordinate system
Select KML Superoverlay as your output format
Choose a target coordinate reference system (optional)
Click Convert and download your KML Superoverlay file

Frequently Asked Questions

How do I convert PNG to KML Superoverlay?

Upload your PNG file to ConvertGeoData, review the detected data, select KML Superoverlay as the output format, and click Convert. Your converted file will be ready to download in seconds.

Is the PNG to KML Superoverlay conversion free?

Yes! ConvertGeoData offers free conversions for all users. No account required for basic conversions. Sign up for a Pro or Business plan for higher limits.

Can I change the coordinate system during conversion?

Yes. ConvertGeoData automatically detects your source CRS and lets you reproject to any EPSG coordinate reference system during conversion.

What software can open KML Superoverlay files?

KML Superoverlay files can be opened with Google Earth, QGIS, GDAL, MapTiler and more.