Print Fundamentals
Learn about images, terminology, and get answers to common questions. This is the best place to start!
DPI / PPI: These terms are used somewhat interchangeably; these refer to the number of dots or pixels per inch in the image. In printing, it is commonly 300 dpi or more, while on the web you will often find 72 dpi or 144 dpi.
Raster: These are used for photos, and most images on the web fit within this category. They are image files that have a maximum visual size, generally specified by DPI/PPI. Common file types are PNG, JPG, RAW, and many others.
Vector: These aren't generally used for photos and are more often used to produce the clean-edged artwork usually found in text, designs, and logos. This is a type of image made from points that create fields of color and they have no maximum visual size. Common file types in this category are PDF, EPS, SVG & AI.


PNG: A lossless image/graphic format that is capable of higher-quality images and transparency.
JPG: A lossy image format that is used to keep file sizes lower. It isn't capable of transparency.
Transparency: In DTF and UVDTF, transparency refers to the background being removed from the image around your subject matter.

