First you need to create your yard sign by sketching out what you would like your sign to look like as well as the information it needs to include. Next, you should think about creating a more detailed image for your yard sign design in a graphics program like Photoshop. You can create highly professional-looking signs in Photoshop and continue to fine-tune your image by working in layers until you are satisfied with the result. When working in layers, you can select different elements to change, while not affecting the other design elements you have created in other layers. You can add photos or other graphics to your overall image and then choose from a variety of filters, fonts and colors to create your ideal yard sign.
Then take your saved design to a local yard sign printing company so that you can have your image printed. You also need to check with the printer to determine what type of file format it requires.