If you want to add a PDF, menu, or other documents on your website, follow these steps:
First, to add the image in question
Go to your WordPress Dashboard.
Click on Media > Add New
Drop files to upload or select the files
Click on Save.

Copy the URL of the PDF, and add it to your desired location
Once you’ve uploaded the PDF, you’ll have to copy its URL
Then, go to the page where you’d like to edit or add the PDF
Click on Enable Visual Builder on top of the page.

Add the right Module
New modules can only be added inside of Rows. If you are starting a new page, don’t forget to add a row to your page first. Learn more about Rows here.
Use the visual builder to add a standard section (the blue +) and then section (green +) with a layout of your choice. The number of columns could be changed afterward.
Then add a Module (text if you want a title on top of your image) to any part of the row.
Click the gray plus button to add a new module to your page.
Click on the button and then click on the Gear Icon
Paste the URL so people can have access to the PDF when they click on the button.