From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/55153 Path: news.gmane.org!not-for-mail From: Oliver Heins Newsgroups: gmane.comp.tex.context Subject: Re: Bug with overprinting in Mark II/IV? Date: Fri, 11 Dec 2009 18:57:30 +0100 Message-ID: <87zl5pe6lx.fsf@sopos.org> References: <874onxhdu7.fsf@sopos.org> <4B224BE7.4010203@gmx.net> <87zl5pfp47.fsf@sopos.org> <4B2282F2.1000200@gmx.net> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1260554309 17712 80.91.229.12 (11 Dec 2009 17:58:29 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Fri, 11 Dec 2009 17:58:29 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Fri Dec 11 18:58:22 2009 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([195.12.62.10]) by lo.gmane.org with esmtp (Exim 4.50) id 1NJ9ku-0005kC-Ls for gctc-ntg-context-518@m.gmane.org; Fri, 11 Dec 2009 18:58:17 +0100 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 0771EC9C69; Fri, 11 Dec 2009 18:58:13 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id U1tdmADtA6-k; Fri, 11 Dec 2009 18:58:12 +0100 (CET) Original-Received: from balder.ntg.nl (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 64890C9BF1; Fri, 11 Dec 2009 18:58:09 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 2ACCDC9BF1 for ; Fri, 11 Dec 2009 18:58:05 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 5LQFkP4dlC7L for ; Fri, 11 Dec 2009 18:57:59 +0100 (CET) Original-Received: from black.cryptix.de (black.cryptix.de [83.137.101.103]) by balder.ntg.nl (Postfix) with ESMTP id 949A4C9B87 for ; Fri, 11 Dec 2009 18:57:58 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by black.cryptix.de (Postfix) with ESMTP id 59F4F266D4D for ; Fri, 11 Dec 2009 18:57:58 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at black.cryptix.de Original-Received: from black.cryptix.de ([127.0.0.1]) by localhost (black.cryptix.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id PJDMuhAqiS6q for ; Fri, 11 Dec 2009 18:57:34 +0100 (CET) Original-Received: from dionysos.sopos.net (p5483A568.dip0.t-ipconnect.de [84.131.165.104]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by black.cryptix.de (Postfix) with ESMTP id E985C266D57 for ; Fri, 11 Dec 2009 18:57:33 +0100 (CET) Original-Received: from olli by dionysos.sopos.net with local (Exim 4.69) (envelope-from ) id 1NJ9kD-0001y1-Cq for ntg-context@ntg.nl; Fri, 11 Dec 2009 18:57:33 +0100 In-Reply-To: <4B2282F2.1000200@gmx.net> (Peter Rolf's message of "Fri, 11 Dec 2009 18:35:46 +0100") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) X-Face: j~5v(Bp|w-}v-^x(PbHz\0k(_hhT~N>n|%e\0cGUJMbW^V}}1H&D0"19u8XGq=[NV[8]$jwG)]ii@jcTZt)Geu})D+lw_C$"#$M^MNTIIRUZ!m X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.12 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 Xref: news.gmane.org gmane.comp.tex.context:55153 Archived-At: Peter Rolf writes: > Oliver Heins schrieb: >> Yes, I noticed that, too. But to me it looks like it is first knocked >> out in the pdf, and then the overprint flag is set. >> >> > Good point. In that case the text must be set twice, as knockout and > overprint can't coexist. I have looked into the uncompressed mkii PDF > (\nopdfcompression) and I can not see any obvious flaw. The parts are > clearly separeted by '/GSknockout gs' and '/GSoverprint gs', the black > text is not set twice. > > Just an idea: the colorspace of the picture is RGB, the text is set in > CMYK. Maybe the mixed color spaces mess up things here. But shouldn't the same effect be seen with other colors than black then, too? And it only happens with black, and I think it happens even when you do it within a cmyk-only document: Can you test the following? My Acrobat is on a machine without net, and my usb stick broke within the experiments. Best regards, olli \setupcolors[state=start, cmyk=yes, rgb=no] \starttext {\bfb\setstrut \startoverprint \framed [background=color,backgroundcolor=magenta, foregroundcolor=yellow,align={lohi,middle}, frame=off,width=3.5cm,height=3cm] {overprint\\\property[knockout]{knockout}}% \stopoverprint \framed [background=color,backgroundcolor=magenta, foregroundcolor=yellow,align={lohi,middle}, frame=off,width=3.5cm,height=3cm] {knockout\\\property[overprint]{overprint}}}% {\bfb\setstrut \startoverprint \framed [background=color,backgroundcolor=magenta, foregroundcolor=black,align={lohi,middle}, frame=off,width=3.5cm,height=3cm] {overprint\\\property[knockout]{knockout}}% \stopoverprint \framed [background=color,backgroundcolor=magenta, foregroundcolor=black,align={lohi,middle}, frame=off,width=3.5cm,height=3cm] {knockout\\\property[overprint]{overprint}}}% \stoptext -- Oliver Heins heins@sopos.org http://oliverheins.net/ http://blog.overheins.net/ F27A BA8C 1CFB B905 65A8 http://scriptorium-adp.de/ 2544 0F07 B675 9A00 D827 1024D/9A00D827 2004-09-24 -- gpg --recv-keys 0x9A00D827 Please avoid sending me Word or PowerPoint attachments: http://www.gnu.org/philosophy/no-word-attachments.html ___________________________________________________________________________________ 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 : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________