From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/3761 Path: main.gmane.org!not-for-mail From: Tobias Burnus Newsgroups: gmane.comp.tex.context Subject: Re: transparent PNG on a coloured background Date: Tue, 09 Jan 2001 20:37:13 +0100 Sender: owner-ntg-context@let.uu.nl Message-ID: <3A5B6869.7A7D2995@gmx.de> References: <200101091516.QAA20924@anxur.fi.muni.cz> NNTP-Posting-Host: coloc-standby.netfonds.no Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Trace: main.gmane.org 1035394479 19852 80.91.224.250 (23 Oct 2002 17:34:39 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Wed, 23 Oct 2002 17:34:39 +0000 (UTC) Cc: ntg-context@ntg.nl Original-To: Han The Thanh Xref: main.gmane.org gmane.comp.tex.context:3761 X-Report-Spam: http://spam.gmane.org/gmane.comp.tex.context:3761 Hi Han The Thanh, > transparency in pdf is not support in the current version of pdf yet (1.3, > acrobat 4.x), so the alpha channel of png figures will be ignored. Who bothers with PDF 1.3, why don't you use PDF 1.4? As far as I know only Adobe Illustrator writes it so far, but since TeX is always on the leading edge. If you are concerned that one cannot view it -- have a look at Ghostscript 6.50. See for reference: http://partners.adobe.com/asn/developer/technotes.html#acrobat-pdf http://www.ghostscript.com/doc/AFPL/6.50/Language.htm With warm regards (and looking forward), Tobias -- This above all: To thine own self be true / And it must follow as the night the day / Thou canst not then be false to any man.