Storage costs money and power. Downloading takes bandwidth. Not everyone has broadband, even in the 1st world.
I also think you are confusing? compression with resolution. The older poor quality manuals on the web etc. are normally due to low resolution scanning or/and copying from poor quality microfilm / microfiche (HPAK bad for the latter).
Modern compression? of monochrome documents and line diagrams is virtually lossless.?
Just cropping your image 1 to remove unneeded parts of your bench saved over 1.5MB. Quite severe compression and reduction in resolution resulted in a 100:1 reduction in size to 45kB with no significant loss of image quality (the original is not that sharp). It's certainly good enough as an image of the panel. Just compressing to a medium amount reduced the cropped file to 300kB with no loss of quality even when zoomed right in to the detail of the 3 pin connector.
I've uploaded a copy of the reduced and compressed image to the folder.
Robert G8RPI.
