>>4094329Install FastStone
Open your tiff file(s) in it
Press F3 to get batch convert screen
Set output format to jpeg or png
Click settings next to it to increase compression
Advanced Options - Resize - Tick resize marker, set in your preferred end resolution.
If you get files under 5mb, it'll do, if not, increase compression and reduce resolution.
Play with the rest of the settings. Program is not the most intuitive, but it's probably the fastest when everything is set right. Png requires smaller resolutions, but imho it's worth it since it's not limited to 8bit. Tennis court shot is brilliant, btw.