Make subscripts and superscripts larger

Problem

You'd like to make the subscripts and superscripts in your text larger than the default size.

Solution

This VBA routine looks at each "run" of text in each shape on each slide in the presentation. A run of text is a character or group of characters that's differently formatted from the previous character or group of characters.

If the current run's baseline offset is not zero then it's a subscript. The macro looks at the size of the previous run and makes this run's text larger by a set amount (the value you set as dBumpBy below).

You could also make dBumpBy negative if you want to make the sub/superscripts smaller.

Sub BumpTheSubsAndSupers()

Dim oSl As Slide
Dim oSh As Shape
Dim x As Long
Dim dBumpBy As Double

dBumpBy = 4 ' number of points to bump sub/superscript by
' Check each slide
For Each oSl In ActivePresentation.Slides
  ' Check each shape on the slide
  For Each oSh In oSl.Shapes
    ' Make sure it's got text
    If oSh.HasTextFrame Then
      If oSh.TextFrame.HasText Then
        With oSh.TextFrame.TextRange
          For x = 1 To .Runs.Count
            If .Runs(x).Characters.Font.BaselineOffset <> 0 Then
            ' it's a sub/super; make it four points
            ' bigger than the text immediately prior:
            .Runs(x).Characters.Font.Size = _
               .Runs(x - 1).Characters.Font.Size + dBumpBy
        End If  ' it's a sub/superscript
      Next x
    End With    ' textframe.textrange
      End If    '  .HasText
    End If  '  .HasTextFrame
  Next oSh      '
Next oSl

End Sub

See How do I use VBA code in PowerPoint? to learn how to use this example code.

Search terms:subscript,superscript,larger,smaller

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