fichier = "\" & Range("I5") & ".pdf"
Dossier = "C:\Users\XXXXX\Documents"
chemin = Dossier & fichier
Selection.ExportAsFixedFormat Type:=xlTypePDF, Filename:=chemin, _
Quality:=xlQualityStandard, IncludeDocProperties:=True, IgnorePrintAreas _
:=False, OpenAfterPublish:=True