Got something round to crop in a picture? Not satisfied with rectangular crops? Find out here how to crop a circle in Paint 3D (as well as other non-rectangular shapes).

First, Wheat Considerably Knocked About

If you opened your copy of the journal Nature published on July 29, 1880, you got to read about a curious discovery made on a farm in Surrey, a county filled with picturesque hills south of London.

The wheat in a field had been “knocked about” not at random, but showing a distinct pattern: “a few standing stalks as a centre, some prostrate stalks with their heads arranged pretty evenly in a direction forming a circle”.

So, let’s talk about cropping circles:

How to Crop a Circle in Paint 3D

To imitate cropping an image in the shape of a circle with Paint 3D:

  1. Select 2D Shapes in the Paint 3D toolbar.
  2. Make sure Circle is selected under 2D shapes in the Paint 3D sidebar.
    • Tip: You can “crop” with any of the other shapes as well, of course.
  3. Click in the image, then keep the left mouse button pressed and hold down the Shift key while drawing a circle with the mouse pointer.
  4. Release the mouse button.
  5. Make sure None is selected under Fill in the Circle sidebar.
  6. Now make sure Solid is selected under Line type and, typically, make the circle white under Choose a color.
    • Note: Choose the desired background color for your image.
  7. Increase the circle outline’s width under Thickness.
  8. Adjust the circle’s size using the outline’s handles so just the part of the image you want to crop is visible inside it.
    How to crop a circle in Paint 3D: Adjust the circle's size
  9. Click the Commit checkmark.
  10. Crop the image in a square so that the new edges are wholly outside the image inside the circle.
  11. Select Brushes in the toolbar.
  12. Make sure Eraser is selected.
  13. Increase the eraser’s thickness.
  14. Delete the image remaining in the crop’s edges.
  15. Optionally, crop the image anew in square shape to remove as much of the white background as possible.

How to Crop a Circle in Paint 3D: FAQ

Can I make the background transparent?

Yes, after “cropping” with the white background in Paint 3D, you can proceed to making the background transparent:

  1. Save the image using the PNG format in Paint 3D.
  2. Make the background color transparent in a tool like Lunapic.

Tip: For this to work most easily, choose a background color that does not otherwise occur in the picture.

(How to crop a circle in Paint 3D tested with Paint 3D 15.1811; updated January 2019; title image: StockUnlimited)