Downloadable infographics

Hello everyone,

Quick question for anyone who can help. We have on our website a few downloadable infographics in jpg and pdf format. NVDA is unable to read any information about them.

The information is such that I think they requires a long description to describe the stats (as well as the text). Does anyone have any recommendations on how best to handle this? Should downloadable infographics be in pdf format with alt text set?

Apologies if this is all obvious, I am just learning!

Thanks, and with best wishes
Louise

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