We want you to have a the best quality imprint. IDEALLY a PDF (vector) image will get you the best results however we do accept raster images as well (png, jpg) but they have to be high resolution. We need a high resolution image file (at least 600 DPI). The image on the right has a ‘staircase effect’ and this will transfer over to the stamp if a file like this is used. A crisp image like the example on the left is ideal. You cannot scale up a raster image (jpg, png files). The only way to make a poor quality image better is with the original vector file (sometimes pdf, or illustrator file).
You can see in the samples below, the difference between lower and higher resolutions. At 150 & 300 DPI you can see some jagged edges. The curves and lines become much smoother in 600 & 1000 DPI.