Am Freitag, 14. September 2007 01:38 schrieb eklektik: > > > > Hello, > > > > > > I have some questions regarding publishing. I am in the process of > creating a book about graphic techniques in scribus. > > I've already made lots of screenshots that I intend to use in the book as > illustrations. > > The screenshots are made in imagemagick in high resolution output 300 dpi. > > But I have to reformat them, which I do in the gimp. > > 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. > > How is Scribus pdf output is effected by these image qualities. > > > > 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. > > Does anyone has experience publishing in this image format? > > > > > > Thanks, > > 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
