Since we know the printer is going to print at 300 dots per inch, all we need to do is figure out how many pixels to give the printer. (Keep in mind, some printers may print at a smaller or larger DPI, so you'll want to be aware of that when sizing for prints.) Get a 300 DPI file So your image file should contain the same number of pixels per inch that your printer is going to be printing per inch. SEE: How to Make a High Resolution Image for Print or Web Understand DPI and PPIģ00 DPI means “dots per inch” as in: the printer is going to spit out 300 little dots of ink for every inch of your photograph. This resizing does bad things to image quality, especially if the image you are sending to the printer is a JPG because JPGs will not maintain the pixel integrity of your image as well as a PNG file type will. If you send too many it has to shrink the image smaller. If you send too few pixels to the printer it will just make pixels up in an effort to fill the page. To get the best resolution when printing, you need to signal to your printer how many pixels per inch (PPI) you want it to print. Here are some guidelines for getting the best quality prints from your photos: Start with the right size and shape