Well I didn’t so I went on a hunt to learn how. I took me a bit to figure it out but now, in hindsight, it’s not so hard.
- Place your cursor at the point in your post where the link should appear.
- Click on Add media from the top of your post window.
- From the Your Computer section click Browse, choose the file then click Upload.
NOTE: from what I can tell you can only upload PDF files. I was unsuccessful with .doc, .xls, .ppt and .rtf files.
- When it uploads a form will display. Click Insert into Post at the bottom of the form.