Re: [Gimp-user] CMYK (was: Diaoppearing freefonts)
Hi, John Culleton [EMAIL PROTECTED] writes: As you know most prepress folks want all color images in CMYK form. So an ablilty to save in CMYK instead of RGB would be what I need. I suppose one could use ImageMagick instead but I haven't tried that. You are only making things worse if you convert from RGB to CMYK without detailed knowledge of the printer, the inks and the paper that will be used. This is the reason why GIMP doesn't support CMYK yet. If it was only about doing the RGB-CMYK conversion using the naive and uncalibrated formula, that would be a five-minute hack that we would have long done. You should really let the printer do the conversion for you. Only the printer knows all the necessary details. And only if they gave you the color profiles for the printer, inks and paper, you could do a reasonable conversion using an appropriate tool. Sven ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Diaoppearing freefonts
On Mon, Jul 14, 2003 at 10:16:24AM -0400, John Culleton wrote: | When one saves from Gimp to PNM I assume that is also an RGB format. | There is a program pnmtotiffcmyk which I have been using. Unfortunately | my preferred typesetting engine, pdftex, now disallows TIFF graphics because | of the many variations of TIFF being produced. They allow JPEG, PNM and | PDF formats for included images. Don't you think the problem lies with your preferred typesetting engine pdftex not allowing CMYK image formats instead? You could try tiff2ps on the generated CMYK TIFF and use the resulting PostScript file with TeX. You can convert that PostScript file to PDF with ps2pdf for use with pdftex. Mukund ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
Re: [Gimp-user] Diaoppearing freefonts
On Monday 14 July 2003 10:38 am, Mukund wrote: On Mon, Jul 14, 2003 at 10:16:24AM -0400, John Culleton wrote: | When one saves from Gimp to PNM I assume that is also an RGB format. | There is a program pnmtotiffcmyk which I have been using. Unfortunately | my preferred typesetting engine, pdftex, now disallows TIFF graphics | because of the many variations of TIFF being produced. They allow JPEG, | PNM and PDF formats for included images. Don't you think the problem lies with your preferred typesetting engine pdftex not allowing CMYK image formats instead? You could try tiff2ps on the generated CMYK TIFF and use the resulting PostScript file with TeX. You can convert that PostScript file to PDF with ps2pdf for use with pdftex. Mukund They allow CMYK. They just don't allow TIFF any more, because of problems they have had. They will accept JPG, PNM or PDF files with the CMYK color model. But other than going through multiple conversions as you suggest I don't know how to get from Gimp to a CMYK illustration. The other side of the problem, making color covers, is a bit easier. One can produce the PNM from Gimp and then use pnmtotiffcmyk to convert. Many printers accept TIFF files if they are also CMYK. Unless one is concerned with flesh tones the exact shades are not all that critical. So I would welcome Sven's five minute hack. Could it be provided as a plugin or something, with a warning label? John Culleton Able Typesetters Indexers http://wexfordpress.com ___ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
