- Open a textured background. Either a paper or clothes textured background will give the best result for the stamped image.
- Create a new channel.
- Fill the channel with white.
- Type in the text in black.
- Choose Filter > Noise > Add Noise of 999, Gaussian, Monochromatic.
- Apply Filter > Stylize > Diffuse > Darken Only.
- Deselect.
- Apply Filter > Blur > Gaussian Blur
- Image > Adjust > Invert.
- Select RGB to go back to the background image.
- Select > Load Selection to load the channel the text was written and modified.
- Fill the text with red (which is a typical color for the stamp).
- Here you go!