Accessing file content client-side

[AnimeAllstar]

So, I'm making this web app to manipulate pdfs client-side/locally and I'm using dropzone-ui-react to upload files. The onChange prop in doesn't really provide access to the file content for each file. Could someone help me out with how I can access the file content from the files client-side? Am I missing something?

Screenshot of my work in progress:

[AnimeAllstar]

I figured it out, turns out all you need to do is to use FileReader to read the files passed to the onChange function.