Ajoute ceci pour voir :
fileSaveName = Application.GetSaveAsFilename(InitialFileName:=fichier, fileFilter:="PDF Files (*.pdf), *.pdf")
If fileSaveName <> "False" Then
Sheets(Array("Page de garde", "General Specification", "XXXXX", _
"YYYYYYY", "ZZZZZZ", "Specification")).Select
ActiveSheet.ExportAsFixedFormat _
Type:=xlTypePDF, _
Filename:=fichier, _
Quality:=xlQualityStandard, _
IncludeDocProperties:=True, _
IgnorePrintAreas:=False, _
OpenAfterPublish:=True
MsgBox "PDF enregistré.", vbInformation, ""
End If