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Old 09-01-2013, 04:03 PM   #517
JensW
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Posts: 29
Karma: 81500
Join Date: Apr 2013
Device: Kindle 4
Quote:
Originally Posted by mldma View Post
hi,Willus
How can I change the color Pdf(scanned document) pages into Black/White one just having the margins trimmed? and how to darken the yellow text? thank you.
The output is black&white by default imho and the pages can be trimmed with the -m(...) commands. Usage is:

k2pdfopt -ml 0.2 -mt 0.3 -mr 0.4 -mb 0.5

this will ignore a margin of 0.2 inches on the left, 0.3 in on the top, 0.4 on the right and 0.5 on the bottom of the page.

The brightness can be adjusted with the gamma command -g

k2pdfopt -g 0.3
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