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Commercial-Use or Web-ready License?

Minimum Resolution

While both DPI and PPI refer to resolution, DPI (dots per inch) is used for print and PPI (pixels per inch) is used for digital. Although many people mistakingly use DPI as a term for resolution in any design context – DPI is irrelevant for web.

While 72 PPI is the recommended minimum resolution, to achieve the highest quality looking images you may want to consider using a higher PPI. Windows default is 96 and Mac is 72, but some devices go up to 120. Keep your images between 72 and 120 to ensure that your images are the same ratio device-wide. One more thing to note, having a higher PPI will impact your overall file size, which will affect the image's loading time for users.

*Depending on the printer, a lower DPI may be acceptable.

Image Dimensions

The size of your images should be based on the content area’s width. Most websites have a content area that is somewhere between 500 and 1024 pixels, so resize your images to a standard size (x2 if you want to consider retina display).

Remember when saving your final files that file size matters. There is no reason to have print-ready photos online (unless someone is downloading them directly from your website), because it only leads to slower load times and frustration for the user.

Common Document Sizes – Inches to Pixels Letter: 8.5 x 11 = 2550 x 3300 Legal: 8.5 x 14 = 2550 x 4200 Ledger: 11 x 17 = 3300 x 5100

File Types

Some print file types may also be used on the web, but it is important to know which file type is best for your image. Below is a list of the most common file types used on the web and what types of projects you can use them for.

JPG (or JPEG) is a lossy graphic (if compressed) that is best for still photography or images with a lot of color and shading.

PNG offers two different options. PNG-8 works well for small icons and simple digital art. PNG-24 is best for graphics that have transparency or fading, as well as imagery like icons and illustrations. PNG-24 has lossless compression, which means that sometimes these files can be larger than a JPG – so try to be conscious of your final file size when saving for the web.

PDF preserves a file's original content. Regardless of how the file is viewed, a PDF will keep the look of your design intact – making it the perfect option for documents that need to be viewed or printed.

SVG preserves a vector graphic's scalability, which makes it perfect for graphics like icons and logos.

GIF is ideal for animations, as well as transparent images and simple small graphics with a limited color palette. One thing to note is that a GIF's color capabilities are limited in comparison to PNG or JPG, but the file size is usually very small – making it a great option for web.



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