Highlight the text you want to be a link and click on the “Insert Link” icon…
Open up the “File Browser” by clicking on the folder with a magnifying glass on it.
Click the “Upload File” tab.
Browse to the file on your computer and click the “Upload+” button.
Either drag and drop your file into the editor, or click “Choose a file” to location the file on your computer and upload it to the website.
Once the file has uploaded click “SELECT”.
Click “OK”, SAVE the change and now you’re done.
Here is a video tutorial of how you can link text in your webpage to a PDF file or other file you want to upload to the website.