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Hello (again)
The thing with size and speed of reading pdf scanned files in a eBook reader has to do with: resolution of the scanning, if it has been done in black and white, grey or colour, and if one does do ocr on it or not and if so if the resulting pdf file is a text and images only file or an images with text under or over it file.
Now let’s say you scan a A4 text page in black and white, 300 dpi, the resulting tiff file with lossless compression should be around 1 Mbyte in size and the resulting image pdf file should be in the best lossless compression on acrobat 9 something less than 100 Kbytes. Multiply this by 100 pages and let some 10 to 15 increase on compression from the “together” of the individual pages in the final unique pdf one.
Then think on a full colour A4 page, still at 300 dpi, the resulting file tiff file is around 20 times bigger (20 Megs), then interpolate the rest.
(btw: grey sits around 1/3 in size, or around 6 to 8 Mbyte in size…)
So…
Get some 10 to 20 pages of what you think is a book that represents 80% of the ones you will want to get in your eBook reader…
Decide if it can be done in black and white - you will be wanting to do it that way as long as you can - , scan it and convert it to pdf with the software you have available now and with the best lossless compression you manage (never let it go below 300 dpi in black and white even if it lets you get smaller files, and 200 dpi in colour or grey).
Put it in your actual eBook reader and test it - the legibility, the speed of turning pages…
You do know now what is big or not and being so if it works or not with your eBook reader in a way you fell (or not) comfortable.
Hope I managed to help.
Best regards,
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