How to add alt-text descriptions to pictures on Twitter for visually impaired people

I’ve seen a couple of tweets and Twitter threads in the last couple of days that have gone a bit viral, highlighting that everyone can set something up in their Twitter settings to make things easier for visually impaired users. If you switch ON the option to be able to caption your photos then, whenever you upload a pic to Twitter, you can click on the image and add a text description. This description doesn’t show up in your tweet (it doesn’t impinge on your character limit) but is useful for those using voice software.

  1. History
  2. How to set it up
  3. Write good descriptions

1. History: Twitter rolls out the ability to add alt text in 2016, initially just for phone apps I think, then later it rolls out to everything.

2. How to set it up

Full info in How to make images accessible for people but for desktop users (like me) the steps look like this, below.

a) Go to https://twitter.com/settings/account and scroll to the bottom of the panel on the left, click on Accessibility.

Screenshot 2018-01-06 00.12.14

b) Make sure there’s a tick next to ‘Compose image descriptions’

Screenshot 2018-01-06 00.14.00

Example of what it looks like when you upload a picture to desktop

Screenshot 2018-01-06 00.41.22

Click anywhere on the image to Add description and write your text in the box that appears.

Screenshot 2018-01-06 00.41.55

3. Write good descriptions: Lovely thread from RobotHugsComics (h/t ScottKeir) with suggestions of what to actually write in the description window.

 

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