Help on a Chrome Extension

PopUp has an existing Chrome extension that presents a form that is pre-populated by page data (e.g. address pulled from the page) and data manually entered by the user. We require additional functionality to enable the user to select any image from the current page, and attach that image to the form for submission to our server. The user would either drag an image from the page onto the form, or click on the desired image. This would capture the image and then submit the image and all the other form data back to the server We need someone experienced with Javascript and browser extensions to add this image capture ability. The extension already captures the necessary text information. Our backend API already accepts images, you would just be enabling the extension to "attach" an image to the note. This is an hourly project. Bids must include time estimate.