Quote:
Originally Posted by JensW
The numbers were just an example. How much you want to trim depends on your document (measure the borders and use these values).
Have you tried the gamma option with different values? Because you can not make specific colors darker and leave the rest as it is as far as I know. You would need a PDF editor for that.
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Sorry,my poor english let you misunderstand the question:
I want to change a scanned color Pdf to black and white Pdf (color fading into black and wihte)without change the original margin,text size . can k2pdfopt do it?
thank you