Retina Web Graphics Explained: 1x versus 2x (Low‑Res versus Hi‑Res)

Photoshop 1x versus 2x Explained

I find that many designers (especially those coming from print) don’t really understand how resolution works on the web, so I’d like to explain it. These concepts apply to whatever design app you use (Photoshop, Sketch, Adobe XD, Illustrator, etc.) and understanding this will help you create properly sized web graphics.

Quick Explanation

If an image will be coded into a space of 300 pixels, you have to make:

  • A 300 pixel wide image (for 1x displays).
  • A 600 pixel wide image (for 2x displays).

In a webpage, both images will be coded so they appear physically the same size, but the 2x image has more pixels squeezed into that space (so it appears sharper and more detailed).

NOTE: The resolution you see in Photoshop (such as 72ppi) is ignored by web browsers and is therefore irrelavent. It does not matter what the resolution is set to (so just make it 72ppi). All that matters is the pixel width and height of your images!

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Is Adobe Experience Design (XD) Ready for Production Work?

At Adobe MAX 2016, Adobe said “you really have everything you need to be successful doing production work inside of XD”.

I like designing with Sketch, and Adobe Experience Design (XD) is clearly inspired by Sketch (to put it mildly). I’ve started learning XD and it does show a lot of potential. It’s still in beta, so can you really do production work with it? That depends on your needs. To help you decide, I’ve compiled a list of its limitations.

Adobe XD screenshot

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