Click the "Upload" link under the "My Files" heading, then click the plus sign button to select your PDF. Click the "Begin Upload" button to proceed.

If you want to get fancy and perform an asynchronous file upload with Java, add Ajax functionality by editing the HTML file. If you replace the markup in HTML file with what’s below, the ...

But even sites that use a simple HTML button with no special JavaScript coding can still accept files through this drag-and-drop method.