To paste in PDFs. You can either do them as rows / bullet points in a text box like this.
By highlighting the text you want, click the 'link' button in text settings window (looks like a two piece chain), click document, then upload and select the pdf you want.
Or you can have these little PDF icons that are buttons to the linked document. You can add them to the page by either copy&pasting them from where they are now (click on them and select change file as you need) or you can add them to the page by going to the 'add elements' at the top of the left menu (the little plus sign in a circle), then 'button', then 'documents'.
The "issue" with these is you have to separately add in text that explains what they are/what the document title is.