How to: Stretch or skew an object in Paint.
Solution:
Select the object and select 'Stretch/Skew...' from the 'Image' menu.
NOTE: This solution assumes that Paint is opened.
1) Click the selection tool in the tool box.
NOTE: The free-form selection tool, positioned to the left of the selection tool, can be used to select irregularly shaped areas.
Selection tool
2) Click and drag the mouse pointer over the item to stretch or skew.
3) Select 'Stretch/Skew...' from 'Image' menu. (The 'Stretch and Skew' dialog box appears.)
4) Select the desired stretch and skew radio buttons.
5) Type the desired stretch or skew percentage.
'Stretch and Skew'
6) Click 'OK' to close the 'Stretch and Skew' dialog box.