[Scribus] Publishing question

[Christoph Schäfer]

Am Freitag, 14. September 2007 01:38 schrieb eklektik:
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>    Hello,
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>
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>    I have some questions regarding publishing. I am in the process of
> creating a book about graphic techniques in scribus.
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> I've already made lots of screenshots that I intend to use in the book as
> illustrations.
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> The screenshots are made in imagemagick in high resolution output 300 dpi.
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> But I have to reformat them, which I do in the gimp.
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> Can anyone with experience advise me how the gimp images are going to turn
> out in the print since the gimp has only 8bit color depth.
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> How is Scribus pdf output is effected by these image qualities.
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>    I am going to publish the book with lulu and their faq says that the
> images can be saved in high resolution jpeg formats in order to keep the
> file size down.
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> Does anyone has experience publishing in this image format?
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>    Thanks,
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>    jmak

Hi jmak

8 bit colour depth won't affect your printing result at all, since hardly any 
print workflow I know of uses 16 bit. Even InDesign converts 16 bit images to 
8 bit during PDF export. With respect to colour depth, you shouldn't 
encounter any issues at all. There are other issues like colour space 
conversion (RGB -> CMYK), though. Please make sure colour management and 
Gamut warning are enabled in Scribus to check for possible issues.

As for JPEG, yes, you can use the format, but a high resolution JPEG probably 
won't be of any advantage, compared to a compressed TIFF, both with respect 
to size and quality.

HTH

Christoph