In your WordPress navigation:
- Click Posts>Add New.
- Click on the Add Media button above the text box.
- Drag your desired PDF file from your computer and drop it into the WordPress upload screen, or click Upload Files > Select Files.
- When desired files have been added, click Insert into post.
The PDF Link will be added to your post.
If you’d like to rename the link, highlight over it, change it, save it.