18 Aug
2015
18 Aug
'15
2:02 p.m.
From: Paul Koning
If you can, avoid black/white scans. The reason is
that scanners are
often noisy in that mode ... Copiers used in scan mode are particularly
likely to do this. Such documents are also surprisingly hard to read,
look messy when printed, and utterly fail OCR.
I was talking about scanning prints (which is how this originally came up,
someone said 300 dpi doesn't catch the very fine printing one can find on
them - which is true, I've had issues in this regard too).
I'm using a professional-grade A3-size scanner (found on eBay for the
princely sum of $100 - it's an older model, with a SCSI interface) - for
scanning fold-out prints, the typical A4/8-1/2x11 scanner won't eat them
whole.
And of course OCR is a non-concept for prints.
For manuals (text), on the other hand, 300 dpi is of course fine.
Noel