To upload a PDF to your collection follow these steps:
- Open up your collection by clicking on it (all of your collections can be seen on the homepage).
- Click the green 'Edit Collection' button in the bottom-right.
- On the page that opens you'll see a button saying 'PDF'
- Click that, choose a PDF, click open and you're done!
When viewers click on the PDF it will open in a new browser tab. To preview this save your collection, which will take you to view mode, then click the PDF.
You can also edit the preview image and text of the PDF by clicking the green pencil button in edit mode.