How can I display a specific metafield on a normal page content section?

[Web_Dev_]

I want to create a metafield (image) on a regular page titled 'Size Chart' so that I can later call it in a popup button on a product page. Since popups only accept text content, I can't directly add an image there. Do you have any ideas on how I can incorporate the metafield into the page content section? (Dawn Theme)