@StephenG accurately noted that for such a large image, IM (ImageMagick)
convert may cause problems. The simple
convert command could lead to 100% of your CPU being used, or freeze, hang, or crash.
One solution (untested, the download of the 10GB file keeps on aborting) is to do the following:
env MAGICK_TMPDIR=/path_to/10GB/hdd_space \
convert -limit memory 1mb -limit map 2mb \
moon_10GB.tiff -resize 1080 moon_smaller.jpg
By limiting your memory usage to a very small amount (wrt 10GB), this will force IM to use your HDD as cache.
Some more info on the IM forum, this post and this one.
Install and use (in a console) ImageMagick with the following
convert command to get an image of the dimension you wish (here 1080px wide or high, see below):
convert your_input_image.tif -resize 1080 resized_image.jpg
The size you specify with the option -resize is the one of the largest dimension of your image. That means that in landscape mode your final image will be 1080px wide, while in portrait it will be 1080px high.