I always scan to optimize OCR, that way the document will be found online
via a search engine.
Lee C.
On Fri, Apr 24, 2015 at 7:40 AM, js at
On 4/24/2015 8:48 AM, Noel Chiappa wrote:
From:
shadoooo
I'm scanning at 600dpi grayscale, lossless
compression.
I've been scanning a few things too, and I found that 600dpi grayscale
produced absolutely enormous files (many, many MB's per page, for
prints), no
matter what I tried to do, compression-wise.
600dpi black and white, followed by saving as TIFF's with CCITT Group 4
compression, produced immensely smaller files (small 100's of KB's for the
same pages), and they are quite readable (even the fine letter seems to be
readable - b/6 is quite distinguishable, etc).
While smaller, I've always found 1 bit b/w scans to be nightmarish to read
(too much font detail is sometimes lost), and forget about grayscale
pictures and diagrams coming across intact. Grayscale is best. The
problem comes in overdoing the DPI. Even 90 dpi is good enough. 150, more
that sufficient. 300 or 600, total waste, but they are (obviously) the
most accurate renderings.
- J.