Creating a torn paper edge effect in Photoshop is a fairly simple process. However, since a small brush is required, it may take some time when applying the effect to a large image.
The instructions in this article apply to Adobe Photoshop CC for Windows and Mac.
How to create a torn paper effect in Photoshop
You can apply this technique to any image element where you want to create the appearance of torn paper:
Choose outil lasso in the tool palette.
If the Lasso tool isn’t visible, click and hold the third icon at the top and select it lasso Tool.
Click and drag to draw a jagged circle around one side of the image.
Release the mouse button to complete the selection.
Make sure the selection runs from top to bottom and outside of the image.
ChooseTo edit > Clear to remove the selection.
Repeat the process on the other side of the image.
Go to Choose > Deselect to remove the selection.
Choose See > zoom in to see the edges clearly.
Choose smearing Tool Palette.
If the smudge tool is not visible, click and hold the button Blurred or Sharpen and select wipe tool from the list.
Choose brush settings in the top toolbar and set it Cut at 1px and the hardness at 100%.
Place the cursor just inside one of the edges of the image, then click and drag outside the image. You should see a thin line on the outside of the tapered image.
Keep painting such lines randomly around the edges of the image. It might not be very impressive at this size, but if you zoom out you’ll see that it creates a subtle effect akin to paper fibers.
Once you are happy with the effect, you can save your image as a PSD file or in a format of your choice.