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However, with more compression there is more loss of image quality. For printing use, it is best to convert the image to a CMYK TIFF.
JPG files are popular for computer and Web use, since the file size is smaller, yet it has a good range of color depth.
You can always scale an image down (reduce in size proportionally) to improve quality, but you lose quality if you try to scale up (enlarge proportionally).
File Formats Exposed Digital image file types are TIFF, PNG, JPG, GIF, and BMP.
So for a file that is 3″ x 5″, the pixel density for the Web is 216 pixels by 360 pixels.TIFF (Tagged Information File Format) or TIF is the standard image file format for commercial printers.These files should be saved in CMYK mode, and bigger is better.Transparency can be saved in the GIF format, as well as multiple images in the same file for use as animated GIFs.
PNG (Portable Network Graphic) is also a popular Web and computer screen format.Bottom Line on File Formats: For commercial printing, the best format is TIFF using CMYK mode.