I want to use HTML5/JavaScript(Internet Explorer 11) to read a .png files metadata, specifically the description field.
Right now I got it so that the user can drag an image to the browser and it will display it, and then it has a place to show the description and everything as well, but I don't know how to get the description from the file.
All the code should be so that it's all processed client-side, which is why I am trying to use JS only. Upon the initial loading of the webpage, they shouldn't need access to the internet anymore. Which also makes it so I can use an AppCache Manifest file to allow them to load the webpage and use it offline for future use after the 1st time as well.
Does anyone know how I might go about doing this?