The easiest and most popular way to save art is as a Vector file.
Vector files such as AI and EPS can remain easy to edit so you can open them in Illustrator and change or distort any text or elements within the design. With files that contain text or objects that are saved as a JPG, PNG or GIF, you can not reopen and edit. There is a way to print high resolution images, but they must be saved large enough so the details and fine lines are clean and crisp.
Continue reading [Video] Saving a File to 300 DPI in Photoshop