Add a progress bar to each slide bottom of PowerPoint.

add-progressbar.vbs

Option Explicit

Sub AddProgressBar()
    On Error Resume Next
        With ActivePresentation
              For X = 1 To .Slides.Count
              
              .Slides(X).Shapes("PB").Delete
              
              Set s = .Slides(X).Shapes.AddShape(msoShapeRectangle, _
              0, .PageSetup.SlideHeight - 5, _
              X * .PageSetup.SlideWidth / .Slides.Count, 5)
              
              s.Fill.ForeColor.RGB = RGB(0, 145, 137)
              s.Name = "PB"
              Next X:
        End With
End Sub