I'm trying to produce a high quality image of a geological structural map provided for at this exact WMS link (The link includes the dimensions I wanted and the max possible resolution they provide)
I tried asking the question here, but had no luck with anyone providing me with an answer. I've also tried working it out like this post, without luck. So instead I've tried a different approach of using the Layer -> Save as function in QGIS. Which is partially successful. I am able to output a geo referenced TIFF of the region with the desired dimensions. But for some reason that is beyond me, the file size is 92 gb and every program I try to open it in, chokes hard. This map is an exact matching overlay of a Sentinel-2 satellite image, in high quality, geo referenced and with a file size of about 1 gb. It ought to be possible for me to do something like that.
It would also be fine if I could get it without a georeference, I can add that manually. I just cannot fathom why it is so hard to have QGIS output a large dimensional image without producing ridiculous file sizes.
Has anyone dealt with anything like this and found a suitable solution or work around?