PDF no és dades obertes <a href="http://www.joseluismarin.net/2011/05/obre-el-papel-de-adobe-y-los-pdf-en.html">http://www.joseluismarin.net/2011/05/obre-el-papel-de-adobe-y-los-pdf-en.html</a><br><br>Raf<br>