To prepare images for printing we normally offer our users the option to change the image dpi. But the question is: is there any specific image format that would provide the best print quality regardless of any other circumstances? Talking about image formats in general, each of them is designed for specific type of graphics job – vector or raster one. In the world of print the first criterion to consider would be the ability of the image format to handle both – vector and raster images. The choice here will be limited with 3 image formats: TIFF, EPS, and PDF . Each of these formats uses the same image data and adjusts the image data for specific purposes. TIFF can save black-and-white (1-bit), grayscale, index color (256 color), RGB, LAB, and CMYK images. It supports 8 bits/channel and 16 bits/channel files, and various forms of compression. Once placed in a program, you can edit, scale, and manipulate all aspects of the image. CMYK TIFF will make the images print faster because of its specific relationship with a printer. EPS file format is supported by most graphic and page-layout programs. Defined lines and curves in vector files are converted into pixels as in bitmap images. EPS files are to be printed to a PostScript printer or RIP (Raster Image Processor). Low-cost inkjet printers though will produce images of low quality out of EPS. Talking about PDF, it is mostly useful when we have formatted text. PDF allows embedding fonts in a document and displays colors in a consistent way. PDF will save layers of your artwork which will be easy to edit if necessary. JPEG is definitely widely used for printing as well. The biggest downside is that the JPEG format is lossy. Each time you open and save it, the image compresses and you lose some image data.