Question 1

What is image georeferencing?

Accepted Answer

Image georeferencing is the process of taking a generic image of a map (like a JPG or PNG) and assigning real-world geographic coordinates to its pixels so it aligns properly over the globe.

Question 2

How do I georeference an image online for free?

Accepted Answer

You can use this free browser-operated tool! Upload your image, click at least 3 recognizable locations on the image, and then click the corresponding real-world locations on the satellite map. The tool calculates the mathematical translation for you.

Question 3

Does this export to Google Earth?

Accepted Answer

Yes, once you have mapped at least 3 points, you can export your georeferenced raster instantly as a portable KMZ file, which acts as a GroundOverlay in Google Earth.

Question 4

Can I export standard World Files (PGW, JGW)?

Accepted Answer

Yes! Using the Format dropdown, you can elect to export your raster bundled inside a ZIP alongside the computed spatial World File and PRJ projection data suitable for professional desktop software like QGIS.

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