First, convert the pdf to an image. Type into google “PDF to Image converter” and some websites should pop up. I usually use the first two links.
Then go back to HubSpot and make a clone of an existing landing page (it must be an infographic).
Change the name of the page to the appropriate title.
Click on the image on the page. The panel on the left should pop up. Click replace image.
The panel on the right should pop up. Click “Add Image” and upload the image you converted.
Go to settings and change the page URL to the appropriate name by clicking the pencil on the right.