At this point in time it is not possible to add Page numbers directly onto documents or when previewing them in a browser, however when downloaded as a PDF this can be accomplished using the " Show Page Numbers in Bottom Margin of Document and Invoice PDFs" Organization setting
To enable this setting:
Select Settings on the left-hand sidebar
Under Organization, click General Settings
Under Documents, Click Edit
Select the toggle for Show Page Numbers in Bottom Margin of Document and Invoice PDFs
Click Save
When Downloading a Document, you'll now be given the option to show page numbers:
The page numbers will now be shown on your downloaded Document
