A quote card, timetable, infographic or diagram is often better exported from its design application than captured as a screenshot. The original layout lets you choose readable type, spacing and a suitable export size. If all you have is a small image from a message, enlargement cannot restore letters that are already unclear. Ask for the original file when the content matters.
This page treats the words as pixels. It does not recognize, translate, rewrite or reflow them. It cannot enlarge only the text while leaving the rest of the image unchanged. Make those changes in the source editor before exporting. For information on a website, real HTML text is often more usable than embedding every instruction inside an image, especially when visitors need to zoom, search, copy or use assistive technology.