The following works for me:
Code:
Dim Rng As Range
With ActiveDocument
Set Rng = .Sections.First.Headers(wdHeaderFooterPrimary).Range.Characters.First
Set shpCompanyLogo = .Shapes.AddPicture(FileName:=strLogoName, LinkToFile:=False, SaveWithDocument:=True, _
Anchor:=Rng, Left:=CentimetersToPoints(snglLeftOffset), Top:=CentimetersToPoints(snglTopOffset))
End With
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