Ok, I got the rest of these done today (schematics and engineering drawings). I experimented with many combos of resolution/bit-depth, and the best quality with a managable size ended up being 300dpi/8-bit greyscale/PDF format/JPEG compression. I think they average around 3megs each for 11" x 17" pages. This was the only format that would pick up things like component numbers on schematics/etc. Everything is available at www.retrobytes.org. BTW, if anyone has any suggestions on a better format for these, I'd be happy to try something else! But until then, the quality looks great to me... Cheers, Aaron