[softwarelist] Re: pre-press checking for DPI of pictures
- From: Martin Wuerthner <public@xxxxxxxxxxxxxxx>
- To: <davidpilling@xxxxxxxxxxxxx>
- Date: Fri, 25 Jun 2010 17:42:29 +0200
In message <512cf85a72chris@xxxxxxxxxxxxxxxxxxxxx>
Chris Johnson <chris@xxxxxxxxxxxxxxxxxxxxx> wrote:
> One assumes the final output for the printer is a PDF file. How does
> OPro scale a jpeg when outputting to PS/PDF, and how would the print
> process 'see' the final dpi value?
PS/PDF does not care about the resolution info in the JPEG. The only
difference the internal resolution setting makes is to the zoom value
you can see in OP. 100% zoom in the OP frame corresponds to the JPEG's
internally set resolution. So, changing the resolution of all JPEGs to
a fixed value, e.g., 300dpi does help a bit when using them in OP, but
it is irrelevant as far as the actual printing process goes.
Martin
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