Hide Text in Picture with Paint.net or Pinta

To hide some text with Paint.net process following steps:

  1. Open you graphic in Paint.net or Pinta which is the cross platform implementation of Paint.net.
  2. Mark the area which is subject to be hided.
  3. Call the pixelate function and choose the level. The result show level 3.
  4. This is what the result look like: