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This allows you to specify the 0131 order in which to choose graphic formats when you include graphic files 0132 by giving the filename without the extension, as in 0133 <code>\includegraphics{functionplot}</code>. 0134 </p> 0135 <p>In this example, LaTeX will find files in the PNG format before PDF 0136 files. 0137 </p> 0138 <div class="example"> 0139 <pre class="example">\DeclareGraphicsExtensions{.png,PNG,.pdf,.PDF} 0140 ... 0141 \includegraphics{lion} % will find <samp>lion.png</samp> before <samp>lion.pdf</samp> 0142 </pre></div> 0143 0144 <p>Because the file name <samp>lion</samp> does not have a period, LaTeX uses 0145 the extension list. For each directory in the graphics path 0146 (see <a href="_005cgraphicspath.html#g_t_005cgraphicspath">\graphicspath</a>), LaTeX will try the extensions in the order 0147 given. If it does not find such a file after trying all the directories 0148 and extensions then it reports ‘<samp>! LaTeX Error: File `<samp>lion</samp>' 0149 not found</samp>’. Note that you must include the periods at the start of the 0150 extensions. 0151 </p> 0152 <p>Because GNU/Linux and Macintosh filenames are case sensitive, the list of 0153 file extensions is case sensitive on those platforms. The Windows 0154 platform is not case sensitive. 0155 </p> 0156 <p>You are not required to include <code>\DeclareGraphicsExtensions</code> in 0157 your document; the printer driver has a sensible default. For example, 0158 the most recent <samp>pdftex.def</samp> has this extension list. 0159 </p> 0160 <div class="example"> 0161 <pre class="example">.png,.pdf,.jpg,.mps,.jpeg,.jbig2,.jb2,.PNG,.PDF,.JPG,.JPEG,.JBIG2,.JB2 0162 </pre></div> 0163 0164 <p>You can use this command anywhere in the document. You can use it more 0165 than once. Show its value with 0166 <code>\makeatletter\typeout{\Gin@extensions}\makeatother</code>. 0167 </p> 0168 0169 0170 0171 <hr/><div class='referenceinfo'> <a href='https://latexref.xyz/'> <i>Unofficial LaTeX2e reference manual</i></a></div> 0172 </body> 0173 </html>