* PDF grayscale conversion (OT) @ 2009-03-10 2:38 Alan Bowen 2009-03-10 6:14 ` luigi scarso 2009-03-10 6:38 ` Yue Wang 0 siblings, 2 replies; 5+ messages in thread From: Alan Bowen @ 2009-03-10 2:38 UTC (permalink / raw) To: mailing ConTeXt users list for I have used to ConTeXt to generate a hefty PDF file with b/w text and color images. Is there a way to convert this file to a PDF file with b/ w text and grayscale images (256 shades)? I know I could always convert the images first and then reset the book, but I was wondering if there was a simpler more direct way before I start doing that. (There are over 70 images.) Best, Alan ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: PDF grayscale conversion (OT) 2009-03-10 2:38 PDF grayscale conversion (OT) Alan Bowen @ 2009-03-10 6:14 ` luigi scarso 2009-03-10 6:38 ` Yue Wang 1 sibling, 0 replies; 5+ messages in thread From: luigi scarso @ 2009-03-10 6:14 UTC (permalink / raw) To: mailing list for ConTeXt users On Tue, Mar 10, 2009 at 3:38 AM, Alan Bowen <acbowen@princeton.edu> wrote: > I have used to ConTeXt to generate a hefty PDF file with b/w text and color > images. Is there a way to convert this file to a PDF file with b/w text and > grayscale images (256 shades)? I know I could always convert the images > first and then reset the book, but I was wondering if there was a simpler > more direct way before I start doing that. (There are over 70 images.) Maybe with ghostscript -- luigi ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: PDF grayscale conversion (OT) 2009-03-10 2:38 PDF grayscale conversion (OT) Alan Bowen 2009-03-10 6:14 ` luigi scarso @ 2009-03-10 6:38 ` Yue Wang 2009-03-10 6:43 ` Yue Wang 1 sibling, 1 reply; 5+ messages in thread From: Yue Wang @ 2009-03-10 6:38 UTC (permalink / raw) To: mailing list for ConTeXt users try convert (in image magick) On Tue, Mar 10, 2009 at 10:38 AM, Alan Bowen <acbowen@princeton.edu> wrote: > I have used to ConTeXt to generate a hefty PDF file with b/w text and color > images. Is there a way to convert this file to a PDF file with b/w text and > grayscale images (256 shades)? I know I could always convert the images > first and then reset the book, but I was wondering if there was a simpler > more direct way before I start doing that. (There are over 70 images.) > > Best, > Alan___________________________________________________________________________________ > If your question is of interest to others as well, please add an entry to > the Wiki! > > maillist : ntg-context@ntg.nl / > http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net > archive : https://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ > ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: PDF grayscale conversion (OT) 2009-03-10 6:38 ` Yue Wang @ 2009-03-10 6:43 ` Yue Wang 2009-03-10 12:40 ` Alan Bowen 0 siblings, 1 reply; 5+ messages in thread From: Yue Wang @ 2009-03-10 6:43 UTC (permalink / raw) To: mailing list for ConTeXt users On Tue, Mar 10, 2009 at 2:38 PM, Yue Wang <yuleopen@gmail.com> wrote: > try convert (in image magick) convert book.pdf -colorspace Gray book.jpg might help. (it will generate book-xx.jpg) Yue Wang ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: PDF grayscale conversion (OT) 2009-03-10 6:43 ` Yue Wang @ 2009-03-10 12:40 ` Alan Bowen 0 siblings, 0 replies; 5+ messages in thread From: Alan Bowen @ 2009-03-10 12:40 UTC (permalink / raw) To: mailing list for ConTeXt users Luigi, Yue—many thanks. I will look into with both Ghostscript and ImageMagick to see what I can do. Best, Alan On Mar 10, 2009, at 02;14,12 , luigi scarso wrote: > On Tue, Mar 10, 2009 at 3:38 AM, Alan Bowen <acbowen@princeton.edu> > wrote: >> I have used to ConTeXt to generate a hefty PDF file with b/w text >> and color >> images. Is there a way to convert this file to a PDF file with b/w >> text and >> grayscale images (256 shades)? I know I could always convert the >> images >> first and then reset the book, but I was wondering if there was a >> simpler >> more direct way before I start doing that. (There are over 70 >> images.) > Maybe with ghostscript > > -- > luigi On Mar 10, 2009, at 02;43,11 , Yue Wang wrote: > On Tue, Mar 10, 2009 at 2:38 PM, Yue Wang <yuleopen@gmail.com> wrote: >> try convert (in image magick) > convert book.pdf -colorspace Gray book.jpg > might help. (it will generate book-xx.jpg) > > Yue Wang > ___________________________________________________________________________________ > If your question is of interest to others as well, please add an > entry to the Wiki! > > maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context > webpage : http://www.pragma-ade.nl / http://tex.aanhet.net > archive : https://foundry.supelec.fr/projects/contextrev/ > wiki : http://contextgarden.net > ___________________________________________________________________________________ ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________ ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2009-03-10 12:40 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2009-03-10 2:38 PDF grayscale conversion (OT) Alan Bowen 2009-03-10 6:14 ` luigi scarso 2009-03-10 6:38 ` Yue Wang 2009-03-10 6:43 ` Yue Wang 2009-03-10 12:40 ` Alan Bowen
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