How do I change the format of all pictures in a PowerPoint 2010 presentation?
If you want a macro-free solution, and reduced number of manual steps:
Select the picture that already has your desired formatting.
Press SHIFT+CTRL+C
Select each picture that you want to reformat, then press SHIFT+CTRL+V
After you've done these steps once, you can select the next picture and press F4.
NOTE: In a slide, you can SHIFT-CLICK to select many pictures. Then press SHIFT+CTRL+V to apply the formatting to all of them.
This little macro will do the job for you:
Sub AddPictureBorders()
' Before running this, apply the style you want to one picture
' then use the formatting paintbrush to pick up the formatting
' This will apply the formatting to each picture.
Dim oSh As Shape
Dim oSl As Slide
For Each oSl In ActivePresentation.Slides
For Each oSh In oSl.Shapes
With oSh
' ignoring linked pictures, OLE objects
' and such
If .Type = msoPicture Then
.Apply
End If
End With
Next
Next
End Sub