Are they always black and white?
A nice little office building in which to run amok! Thought the Traveller and Shadow Run gamers might be able to use this.
If you can use it, check out my album for more floorplans.
They were done several years ago with very limited software. I have been trying my hand at coloring a few with Gimp after reading several rocommendations here. A few are posted in my album, though I am not totally satisfied with them. Still tinkering with it as they look like I just poured in colors and patterns - which is essentially what I did.
You really should save these as PNG-8 instead of jpeg. They should compress smaller, and they won't get compression artifacts because PNG is a lossless format.
Jpeg is most appropriate for photographic images with lots of color gradations. PNG is an improvement on Gif, and it does best with line drawings that have large areas of solid colors and repeating patterns. And you can get even more savings by limiting PNG to a 256 color palette (PNG- instead of the full 24 bits per pixel of a jpeg.
Bryan Ray, visual effects artist