A file picker lets people browse files from device storage to choose a file or files to upload them to our products.
input type="file", which looks like a button, to browse files from device storage.
A drag-and-drop file upload lets people drag a file or files from their device to an area of the interface (a "drop zone") to upload them to our products.
alttext with the uploaded image or if it's appropriate to provide an auto-generated
alttext, such as the company name for a company logo.
Here are some examples of file upload and drag and drop elsewhere: