1. Go to the page or post where the link to your document will be added
  2. (create a new page or post if necessary).
  3. Locate your cursor precisely where the text link will be placed (but don’t type any text).
  4. Click the Add Media button (above the editing toolbar buttons).
  5. Click Select Files or drag your PDF file into the dotted box. Your PDF document will be imported into the WordPress Media library.
  6. Once the uploading/crunching process has completed, enter the text you require (for the link on the page) in the Title box.
  7. Under ATTACHMENT DISPLAY SETTINGS choose Link To Media File. This ensures that text added to your post will link to the file you have just uploaded.
  8. Click the Insert into Page/Post button
  9. Don’t forget to press the Update or Publish button to finish.