Affinity Publisher document
AFPUB is the project file of Affinity Publisher, Serif's page-layout app. It holds pages, master pages, text frames, linked images and styles for documents such as brochures, magazines and books. ToAny reads the preview picture Affinity saves inside the file, so what you get is Affinity's own render of the document, at the size Affinity stored it (up to about 512 pixels on the long side), not the layers or the full-size artwork. For a multi-page publication only the single preview Affinity chose to save is available.
Opens in Affinity Publisher and Affinity 3
AFPUB converter