Insert a file link to the image in the Org file, and the Texinfo export back-end inserts the image. These links must have the usual supported image extensions and no descriptions. To scale the image, use ‘:width’ and ‘:height’ attributes. For alternate text, use ‘:alt’ and specify the text using Texinfo code, as shown in the example:
#+ATTR_TEXINFO: :width 1in :alt Alternate @i{text}
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