From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/75757 Path: news.gmane.org!not-for-mail From: Peter Rolf Newsgroups: gmane.comp.tex.context Subject: Re: Rendering differences between PDF viewers Date: Fri, 20 Apr 2012 09:50:37 +0200 Message-ID: <4F91154D.3020407@gmx.net> References: <1334469628.3748.29.camel@kip-laptop> <4F8AF085.6070208@wxs.nl> <1334619889.28437.1.camel@kip-laptop> <4F8D138B.3030605@wxs.nl> <1334645858.2011.5.camel@kip-laptop> <4F8D3D9B.1040406@gmx.net> <4F8D4216.4060809@wxs.nl> <4F8D4A74.8030404@gmx.net> <1334710198.2011.40.camel@kip-laptop> <4F8E6F65.50002@wxs.nl> <4F8EA1A2.3030806@gmx.net> <4F90587C.4060109@wxs.nl> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1334908259 8693 80.91.229.3 (20 Apr 2012 07:50:59 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 20 Apr 2012 07:50:59 +0000 (UTC) Cc: mailing list for ConTeXt users , Kip Warner To: Hans Hagen Original-X-From: ntg-context-bounces@ntg.nl Fri Apr 20 09:50:56 2012 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([195.12.62.10]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1SL8cH-00065e-Ox for gctc-ntg-context-518@m.gmane.org; Fri, 20 Apr 2012 09:50:54 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 1D3B2101F5; Fri, 20 Apr 2012 09:50:50 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (localhost [127.0.0.1]) (amavisd-new, port 10024) with LMTP id uGEzvE6xmkk9; Fri, 20 Apr 2012 09:50:48 +0200 (CEST) Original-Received: from [127.0.0.1] (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 16FB3101E1; Fri, 20 Apr 2012 09:50:48 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 56628101E1 for ; Fri, 20 Apr 2012 09:50:46 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (localhost [127.0.0.1]) (amavisd-new, port 10024) with LMTP id kpSzJlmevkpc for ; Fri, 20 Apr 2012 09:50:45 +0200 (CEST) Original-Received: from filter1-nij.mf.surf.net (filter1-nij.mf.surf.net [195.169.124.152]) by balder.ntg.nl (Postfix) with ESMTP id ADE7A101E0 for ; Fri, 20 Apr 2012 09:50:45 +0200 (CEST) Original-Received: from mailout-de.gmx.net (mailout-de.gmx.net [213.165.64.22]) by filter1-nij.mf.surf.net (8.14.3/8.14.3/Debian-5+lenny1) with SMTP id q3K7oimE017065 for ; Fri, 20 Apr 2012 09:50:44 +0200 Original-Received: (qmail invoked by alias); 20 Apr 2012 07:50:44 -0000 Original-Received: from ip-92-50-87-192.unitymediagroup.de (EHLO [192.168.178.3]) [92.50.87.192] by mail.gmx.net (mp034) with SMTP; 20 Apr 2012 09:50:44 +0200 X-Authenticated: #24293357 X-Provags-ID: V01U2FsdGVkX19FatEDQ+xF3ntUIgo4HhC7383YNRGsAHukxwGy9e 7clXLDaZk+NAbH User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:11.0) Gecko/20120327 Thunderbird/11.0.1 In-Reply-To: <4F90587C.4060109@wxs.nl> X-Enigmail-Version: 1.4 X-Y-GMX-Trusted: 0 X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=213.165.64.22; country=DE; latitude=51.0000; longitude=9.0000; http://maps.google.com/maps?q=51.0000,9.0000&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 07H07OIFI - e47c0771a641 - 20120420 X-Scanned-By: CanIt (www . roaringpenguin . com) on 195.169.124.152 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:75757 Archived-At: Am 19.04.2012 20:25, schrieb Hans Hagen: > On 18-4-2012 13:12, Peter Rolf wrote: > >> I understand that there is no easy or general solution for this. >> But on the other hand is PNG currently the only way to use transparent >> bitmaps in TeX. The usage of transparent PNG is quite common, so this is >> a general problem that should be solved. >> >> I like your idea of automatically adding such groups, if the user >> declares the color space beforehand. Also no answer for the spot color >> problem, but as long as the user does not limit the used color spaces, >> things can stay as they are. Just my 2 cents. > > so first wen need to test with mixed color space documents and such > hacks to see what happens (as we don't want invalid documents) > ok. i don't expect any formal problems, only more or less ugly color shifts. anyhow, we will see. needs some thinking about proper examples (colored text, vector and pixel based graphics in RGB,CMYK,Spot)... i think 'draw ColorCircle(..)' is a perfect candidate for the complete graphic part. one page with transparency and also one page without any transparency (the page group shouldn't kick in). later on we can add some icc profiles to spice things up. i'll start to make a test document on the weekend then. if i have missed something important, let me know. any additional ideas are also welcome :-) Peter ___________________________________________________________________________________ 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 ___________________________________________________________________________________