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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <!-- Created by GNU Texinfo 6.8, https://www.gnu.org/software/texinfo/ --> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <!-- This manual is for GNU Texinfo (version 6.8, 8 June 2021), a documentation system that can produce both online information and a printed manual from a single source using semantic markup. Copyright (C) 1988, 1990-1993, 1995-1999, 2001-2021 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with no Front-Cover Texts, and with no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". --> <title>PDF Colors (GNU Texinfo 6.8)</title> <meta name="description" content="PDF Colors (GNU Texinfo 6.8)"> <meta name="keywords" content="PDF Colors (GNU Texinfo 6.8)"> <meta name="resource-type" content="document"> <meta name="distribution" content="global"> <meta name="Generator" content="texi2any"> <meta name="viewport" content="width=device-width,initial-scale=1"> <link href="index.html" rel="start" title="Top"> <link href="Command-and-Variable-Index.html" rel="index" title="Command and Variable Index"> <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> <link href="_0040url.html" rel="up" title="@url"> <link href="_0040url-PDF-Output-Format.html" rel="prev" title="@url PDF Output Format"> <style type="text/css"> <!-- a.copiable-anchor {visibility: hidden; text-decoration: none; line-height: 0em} a.summary-letter {text-decoration: none} blockquote.indentedblock {margin-right: 0em} div.display {margin-left: 3.2em} div.example {margin-left: 3.2em} kbd {font-style: oblique} pre.display {font-family: inherit} pre.format {font-family: inherit} pre.menu-comment {font-family: serif} pre.menu-preformatted {font-family: serif} span.nolinebreak {white-space: nowrap} span.roman {font-family: initial; font-weight: normal} span.sansserif {font-family: sans-serif; font-weight: normal} span:hover a.copiable-anchor {visibility: visible} ul.no-bullet {list-style: none} --> </style> </head> <body lang="en"> <div class="subsection" id="PDF-Colors"> <div class="header"> <p> Previous: <a href="_0040url-PDF-Output-Format.html" accesskey="p" rel="prev"><code>@url</code> PDF Output Format</a>, Up: <a href="_0040url.html" accesskey="u" rel="up"><code>@url</code>, <code>@uref{<var>url</var>[, <var>text</var>][, <var>replacement</var>]}</code></a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Command-and-Variable-Index.html" title="Index" rel="index">Index</a>]</p> </div> <hr> <span id="PDF-Colors-1"></span><h4 class="subsection">5.10.4 PDF Colors</h4> <span id="index-Colored-links_002c-in-PDF-output"></span> <span id="index-Links_002c-coloring-in-PDF-output"></span> <span id="index-URLs_002c-coloring-in-PDF-output"></span> <p>By default, urls and cross-reference links are printed in black in PDF output. Very occasionally, however, you may want to highlight such “live” links with a different color, as is commonly done on web pages. Texinfo provides a PDF-specific option for specifying these colors, which must be used inside <code>@tex</code>: </p> <span id="index-_005clinkcolor"></span> <span id="index-_005curlcolor"></span> <div class="example"> <pre class="example">@tex \global\def\linkcolor{1 0 0} % red \global\def\urlcolor{0 1 0} % green @end tex </pre></div> <p><code>\urlcolor</code> changes the color of <code>@url</code> output (both the actual url and any textual label), while <code>\linkcolor</code> changes the color for cross-references to nodes, etc. They are independent. </p> <span id="index-RGB-color-specification_002e"></span> <p>The three given values must be numbers between 0 and 1, specifying the amount of red, green, and blue respectively. </p> <p>These definitions only have an effect when the PDF output is produced with the pdfTeX program, not with other ways of getting from Texinfo to PDF (e.g., TeX to DVI to PDF). Consequently, it is ok to specify this option unconditionally within <code>@tex</code>, as shown above. It is ignored when DVI is being produced. </p> <p>We do not recommend colorizing just for fun; unless you have a specific reason to use colors, best to skip it. </p> </div> </body> </html>