Here we are going to explain about undo and redo command in paint

The Undo Function in Paint Does not Perform as Specified

Unlike other graphics applications such as GIMP or Photoshop, Microsoft Paint doesn’t give you the ability to work in layers. After text has been added to an image in Paint, it can’t be deleted. You can, however, remove the text by painting over it or copying other portions of the image and pasting them over the text. Another option is to crop the image to remove the area that contains text

Undo and Redo command in Paint

Ctrl+N Create a new picture
Ctrl+O Open an existing picture
Ctrl+S Save changes to a picture
F12 Save the picture as a new file
Ctrl+P Print a picture
Alt+F4 Close a picture and its Paint window
Ctrl+Z Undo a change
Ctrl+Y Redo a change
Ctrl+A Select the entire picture
Ctrl+X Cut a selection
Ctrl+C Copy a selection to the Clipboard
Ctrl+V Paste a selection from the Clipboard
Right Arrow Move the selection or active shape right by one pixel
Left Arrow Move the selection or active shape left by one pixel
Down Arrow Move the selection or active shape down by one pixel
Up Arrow Move the selection or active shape up by one pixel
Esc Cancel a selection
Delete Delete a selection
Ctrl+B Bold selected text
Ctrl++ Increase the width of a brush, line, or shape outline by one pixel
Ctrl+- Decrease the width of a brush, line, or shape outline by one pixel
Ctrl+I Italicize selected text
Ctrl+U Underline selected text
Ctrl+E Open the Properties dialog box
Ctrl+W Open the Resize and Skew dialog box
Ctrl+Page Up Zoom in
Ctrl+Page Down Zoom out
F11 View a picture in full-screen mode
Ctrl+R Show or hide the ruler
Ctrl+G Show or hide gridlines
F10 or Alt Display keytips
Shift+F10 Show the current shortcut menu
F1 Open Paint Help