Error on rendering PDF with V.2.61.1.1

Hello,

I tried to use WPviewPDF, but the font while not pretty well rendering.
WPviewPDF don't used the original font embed in the file.

The file is here : http://dl.free.fr/eHEq1mRZ9

I can send screenshot if you want.

Thanks look this,

Yoran MAULNY