Am 2014-07-12 um 18:58 schrieb Pol Stra <>:

> I wonder, what can I do to reduce the size of 
> those files while keeping a printable quality document?

For color or greyscale pictures that are (like) photos, 150 dpi in final size 
is mostly enough, even for quality offset printing.

„In final size“ = not scaled up

If you have fine lines, like diagrams or scanned text, you might need 300 dpi. 
For black & white lineart, you should use the resolution of your printer, but 
even for offset printing 800 dpi is enough (more than 1200 dpi are always 

Greetlings, Hraban
--- (I'm an assurer)

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