roadworker said:
Redo the .jpeg to.gif with IrfanView.....small filesize with acceptable quality...
JPEG to GIF, or GIF to JPEG, rarely work well....
GIF like solid, hard edged colour blocks (JPEG spoils them with artifacts).
JPEG hates dithering (which many GIF options do if >256 colours).
Another program, though it's overkill for this, is Pixia (I'll look it up later) - with the replacement JPEG save DLL, it has preview and selectable colour downsampling - if you have fine colour detail, you want to avoid downsampling, but for many subjects, downsampling the colour channel can be a free boost to compression. Other programs often use a fixed downsample by quality level.