[ConservativeMind]

I used to scan at 600 DPI. When a OCR program couldn't convert a certain area and left a graphic version of the text there instead, it still looked good.

600 dpi with color or 8-bit gray is almost overkill, but it assures a program like Omnipage gets the best results.

However, several OCR programs can't use the gray or color scan depth to increase accuracy.

[HAL9000]

600 dpi with color or 8-bit gray is almost overkill, but it assures a program like Omnipage gets the best results.

It probably is overkill for the photographic images, but good for small text. That may explain why your file sizes are so large.