I went back and visited another
old thread. This one had a PDF file with illustrations and equations. Running the file through Amazon's conversion service and MobiPocket Creator caused some of the equations with Greek letters to turn into gibberish on Kindle 1. The illustrations looked fine.
I tried 4 profiles. The first 2 processed the file in portrait mode. The type was way too small although all the illustrations and equations looked good. The 3rd profile used landscape mode and split each page in half. The type was a little bit bigger and parts of a couple of pages had text lines that were cut in half and were unreadable. The last profile used landscape and was to split the pages in thirds. It didn't work and looked just like the pages split in half.
Below are a few of the original conversion images followed by the 1st and 3rd test profiles. I'm also throwing in the .mobi books of the 2 profiles so you can see them on your own Kindles (1 or 2).
There is probably room to tweak the profiles more but this will have to do for a start.
Note: The 4 images at the bottom are from the original conversion. I don't know how to move them up in the post.
Edit: For comparison, I know I should run the original PDF through Amazon again to see how it works with the new support for Greek letters. That will be a follow-up post.