Uploading Media
You can add images and other media files such as documents, PDFs or videos to your Pages/Posts.
When editing your content click the 
button and then simply drag your file from wherever they are on your computer, into the browser window. Your file(s) will be automatically uploaded.
Alternatively, click the Select Files button and then browse to select the file(s) that you’d like to upload, using the dialog window that is displayed.
It’s also possible to simply drag your file straight into the Visual Editor, rather than clicking the Add Media button.
Full Guide
