Custom Signature Stamp - Your Signature Made Into a Self Inking Rubber Stamp Signature image area approx. 3/4" x 2" For best Signature Stamp upload a Black/White image file (NO PHOTOS) Click on "Customize Now" at the right - Upload feature accepts JPG and PNG files. Comes in Black Ink - or Email us a request for different color after order is placed Clear transparent base helps you line up your stamp correctly