如果几页ppt文档处理起来很快，但是如果上了50页，改个东西还真是不容易，特别是上了几百页的话那，简直就死机了，这里给您提供一个快速批量设置PowerPoint字体及行间距的宏源码。
Sub ChangeTextFont()
Set pages = ActivePresentation.Slides.Range
pageCount = pages.Count
'第一页和最后一页跳过
For i = 2 To pageCount - 1
DoEvents
ActiveWindow.View.GotoSlide Index:=i
shapeCount = ActiveWindow.Selection.SlideRange.Shapes.Count
For j = 1 To shapeCount
ActiveWindow.Selection.SlideRange.Shapes(j).Select
shapeType = ActiveWindow.Selection.SlideRange.Shapes(j).Type
'1 - 自选图形
'7 - 公式
'13 - 图片
'14 - 占位符
'15 - 艺术字
'17 - 文本框
'19 - 表格
'Debug.Print shapeType
Select Case shapeType
Case 1, 14, 17
Set txtRange = ActiveWindow.Selection.ShapeRange.TextFrame.TextRange
txtRange.Select
If txtRange.Text <> "" Then
'设置字体为宋体, 24号
With txtRange.Font
.Name = "宋体"
.Size = 24
End With
'设置段落格式为1.3倍行距
With txtRange.ParagraphFormat
.SpaceWithin = 1.3
End With
End If
Case 7, 13, 15
Case 19
End Select
Next j
Next i
End Sub