private void VisualisationPDF_Load(object sender, EventArgs e)
 {
     WBaffichagepdf.Navigate(chemin);
 }
 private void VisualisationPDF_Load(object sender, EventArgs e)
 {
     WBaffichagepdf.Navigate(@"D:\Copie Clé\Ecole\Stage\CV Etienne Soleau stage SIO 2nd année.pdf");
 }