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When I upload the PNG file into ArcGIS Pro it doesn't seem to access or read the associated PGW file. The error I get is that it has "Unknown Coordinate System"

How do I go about correcting the unknown coordinate system or get it to read the PGW file?

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    A world file doesn't provide a coordinate system, just the orientation and scaling parameters. "Unknown coordinate system" isn't an error, just a warning. If you pull up the properties, you'll probably see that it has coordinate values assigned.
    – Vince
    Commented Aug 17, 2023 at 21:50
  • Maybe this will help: gis.stackexchange.com/a/121357/175465 and this: gis.stackexchange.com/a/316762/175465
    – Kinan AlQassem
    Commented Aug 17, 2023 at 21:59
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    World file (.pgw, .tfw etc) defines the relation between pixel coordinates and real-world coordinates pro.arcgis.com/en/pro-app/latest/help/data/imagery/…, but it does not tell what is the coordinate system of the real world coordinates. The coordinate system can be saved into a .prj file. It is not mandatory to have the .prj file and if it is missing then user just needs to know what is the correct coordinate system and define it manually.
    – user30184
    Commented Aug 18, 2023 at 6:57

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