How to Enlarge a Drawing Using a Grid

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Things You'll Need

  • Rulers

  • Butcher Papers

  • Notebook Papers

  • Comic Books

  • Pencils And Erasers

  • Yardsticks

  • Coloring Books

How to Enlarge a Drawing Using a Grid

How to Enlarge a Drawing Using a Grid. You don't need to be an artist to copy or enlarge any picture with great results.


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How to Enlarge a Drawing Using a Grid

Step 1

Select the picture you want to enlarge.


Step 2

Place a ruler along the top edge of the picture.


Step 3

Make a small mark with a pencil at every 1/2 inch.


Step 4

Mark the bottom edge of the picture the same way. Make sure you have the same number of marks at the top and bottom of the picture.


Step 5

Connect each pencil mark at the top of the picture with a corresponding mark at the bottom using a ruler. This will make parallel lines over the picture.


Step 6

Measure and mark every 1/2 inch along the side edges of the picture.


Step 7

Connect the marks on each side. Your picture is now covered with squares called a grid.


Step 8

Calculate how much larger you need to make your picture and how large you need to make squares on a second grid. For example, if you are doubling the picture size, squares in the second grid will be 1 inch.

Step 9

Draw a second grid on a larger sheet of blank paper. Use a yardstick to make this larger grid if necessary.

Step 10

Copy the picture from the first grid, square by square, by drawing it on the new, larger grid.


Reduce a picture by decreasing the size of the squares on the second grid using the same technique. If the size of the original grid is 1/2 inch and you want to make the picture half the size, make 1/4-inch squares on the second grid. Use this technique to enlarge or copy cartoon characters, coloring book pictures and lettering for signs.