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> I did PDF. There are about no studies on PDF size and usability. What I > did is go to gray scale for text pages to knock down file size, played with > optimizing, and broke super long (think 3K page book) files in smaller > chunks.... > > When I looked at other big long books online, I found they tended to use > 300 dpi gray scale or 600 dpi black and white. I just looked at government > documents, because that's what I worked with. > Hadn't thought about doing government reports. That's a good use case for what we have -- one of ours got downloaded about 7,000 times last month alone. I could probably make those really manageable in size as most pages would be just fine bitonal. Can you say a bit about what you discovered while playing with optimization? Since archival books are a prime target, fidelity is important -- there is significant artwork on many pages. I'll have to scale down and would really like to avoid grayscaling if necessary. kyle