From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/48163 Path: news.gmane.org!not-for-mail From: Alan Bowen Newsgroups: gmane.comp.tex.context Subject: Re: PDF grayscale conversion (OT) Date: Tue, 10 Mar 2009 08:40:21 -0400 Message-ID: <982ADF68-AA8F-4C80-AD37-6B2448D73EC3@princeton.edu> References: <648CB28C-FE48-4B8E-82E2-84CFB651A58F@princeton.edu> <68bfdc900903092338v5b6cc8d1t80fc82069eb69599@mail.gmail.com> <68bfdc900903092343q6a79a2acn1539d4a65b555b29@mail.gmail.com> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 (Apple Message framework v930.3) Content-Type: text/plain; charset="windows-1252"; Format="flowed"; DelSp="yes" Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1236688949 10883 80.91.229.12 (10 Mar 2009 12:42:29 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 10 Mar 2009 12:42:29 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Tue Mar 10 13:43:43 2009 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from ronja.vet.uu.nl ([131.211.172.88] helo=ronja.ntg.nl) by lo.gmane.org with esmtp (Exim 4.50) id 1Lh1IE-0000XX-UH for gctc-ntg-context-518@m.gmane.org; Tue, 10 Mar 2009 13:42:46 +0100 Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 605561FC9B; Tue, 10 Mar 2009 13:41:23 +0100 (CET) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (smtp.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 08176-06; Tue, 10 Mar 2009 13:40:51 +0100 (CET) Original-Received: from ronja.vet.uu.nl (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id E33D21FC11; Tue, 10 Mar 2009 13:40:50 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 365891FC11 for ; Tue, 10 Mar 2009 13:40:49 +0100 (CET) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (smtp.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 15180-01 for ; Tue, 10 Mar 2009 13:40:42 +0100 (CET) Original-Received: from filter1-ams.mf.surf.net (filter1-ams.mf.surf.net [192.87.102.69]) by ronja.ntg.nl (Postfix) with ESMTP id AC8C41FC0D for ; Tue, 10 Mar 2009 13:40:42 +0100 (CET) Original-Received: from vms173009pub.verizon.net (vms173009pub.verizon.net [206.46.173.9]) by filter1-ams.mf.surf.net (8.13.8/8.13.8/Debian-3) with ESMTP id n2ACefKL004724 for ; Tue, 10 Mar 2009 13:40:42 +0100 Original-Received: from new-host.home ([72.82.250.115]) by vms173009.mailsrvcs.net (Sun Java(tm) System Messaging Server 6.3-7.04 (built Sep 26 2008; 32bit)) with ESMTPA id <0KGA001KVJ79BLUE@vms173009.mailsrvcs.net> for ntg-context@ntg.nl; Tue, 10 Mar 2009 07:40:21 -0500 (CDT) In-reply-to: <68bfdc900903092343q6a79a2acn1539d4a65b555b29@mail.gmail.com> X-Mailer: Apple Mail (2.930.3) X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=206.46.173.9; country=US; region=TX; city=Grapevine; postalcode=76051; latitude=32.9234; longitude=-97.0810; metrocode=623; areacode=817; http://maps.google.com/maps?q=32.9234,-97.0810&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 191264224 - b374ae0a3a66 X-Scanned-By: CanIt (www . roaringpenguin . com) on 192.87.102.69 X-Virus-Scanned: amavisd-new at ntg.nl X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.11 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: ntg-context-bounces@ntg.nl Errors-To: ntg-context-bounces@ntg.nl X-Virus-Scanned: amavisd-new at ntg.nl Xref: news.gmane.org gmane.comp.tex.context:48163 Archived-At: Luigi, Yue=97many 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 = > 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 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-co= ntext > 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 t= he Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-cont= ext webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________= ________