Though PSDs preview within an Attachments field, they are not supported within the Page Designer Block.
Though flattened TIFFs are supported by the Attachments field, layered TIFFs are not supported.
When printing from the Page Designer Block, blank pages are inserted after every page of data. This requires manual clean-up in Acrobat or similar.
Though PDFs are supported well when using Airtable online, they are rendered at a very low resolution when printed to PDF via the Page Designer Block. We require sharp PDFs, and are thus required to export our PDFs as images if we want them at usable fidelity once printed.