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).
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Change the name of the page to the appropriate title.
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Click on the image on the page. The panel on the left should pop up. Click replace image.
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The panel on the right should pop up. Click “Add Image” and upload the image you converted.
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Go to settings and change the page URL to the appropriate name by clicking the pencil on the right.