<br><blockquote class="replbq" style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> Thanks, Herbert and Voss,<br><br>This works:<br><br>\documentclass{article}<br><br><br> \usepackage{pdftricks}<br>\begin{psinputs}<br> \usepackage{pstricks,pst-plot,pst-text}<br><br> \end{psinputs}<br><br><br>\begin{document}<br>\begin{pdfpic}<br> \begin{pspicture}(-3,-1)(3,5)<br> \psaxes[labels=none,linecolor=gray](0,0)(-3,-1)(3,5)<br> \pstextpath{%<br> \psplot[linestyle=none]{-2}{2}{4 x 2 exp sub}}{%<br> This is the graph of the equation $y=4-x^2$ for<br> $-2\le x\le 2$}<br> \end{pspicture}<br>\end{pdfpic}<br> \end{document}<br><br>However, I am afraid I hijacked the original request: which (as I<br>believe) was to make it inside tikzpicture<br></blockquote><br>That does not work for me : if I make pdflatex -shell-escape on that example, I get the joined pdf.<br><br>Indeed, that is not with tikzpicture...
but if it's not possible with tikzpicture, I have to try something else :)<br><p> 
                <hr size="1">
<b>Yahoo! Mail réinvente le mail !</b> Découvrez le <a href="http://fr.rd.yahoo.com/evt=40577/*http://fr.promotions.yahoo.com/mail/nouveaumail.html
">nouveau Yahoo! Mail</a> et son interface révolutionnaire.