PPI stands for "pixels per inch" and represents the resolution of your artwork. Although DPI is a more commonly used term, when it comes to your artwork's resolution PPI or Pixels Per Inch is most important.
Proper image resolution is critical to printing a professional piece that features crisp graphics, sharp definition and beautiful color depth. It’s important to check your image resolution before you sumbit your artwork to ensure your sticker looks as amazing printed as it does on your computer screen.
Your artwork should be at least 300 PPI at the size you need.
At 300 pixels per inch (which roughly translates to 300 DPI, or dots per inch, on a printing press), an image will appear sharp and crisp. These are considered to be high resolution, or high-res, images. (If you’re working with photography, you’re probably working with high-resolution JPEGs, which can be printed as stand-alone photos or incorporated into your sticker.
