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>> With all due respect, 300 dpi is NOT "MUCH too low".  Resolution is an
>> application-dependant issue.  There is no "correct" resolution for anything.
>
>With all due respect, try scanning the 4 point type on the side of a
>pharmaceutical package at 300 ppi and then OCR it.

As I indicated in my post, 300 dpi is indeed inappropriate for OCRing small type.  
Since the original question only mentioned "books" I thought it best to not make the 
assumption of small text, since hi-res scanning is slower, and produces much larger 
files.

>An 8x10 1 bit TIFF at 300 ppi is 320k
>
>An 8x10 1 bit TIFF at 600 ppi is 860k - I guess I don?t see any big deal
>with the file size being an issue.

Maybe you don't need to deliver image files online.

>I will stick with recommending 600 ppi for more successful OCR.

As you should.  It's just not a general rule - which is all I said.

>(I forget what this has to do with PDF)

Me too!

Duff Johnson
Document Solutions, Inc.
www.document-solutions.com


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