I have recently published an ebook in .epub format which contains a lot of tables which were imported from Excel and converted to 16-color grayscale .png files to keep the size down.
When I view the tables with Calibre, the results aren't too bad at all - a little fuzzy around the edges - but perfectly legible. However, when I try and view the same .epub under Adobe Digital Editions, the results are horrribly blurred and totally unreadable.
Here is how it looks on Calibre:
And on ADE:
Does anyone have any idea as to why there is such a difference? Is there anything I can do to make it display better on ADE? Would increasing the resolution help? Or using .gifs instead?