Affinity can synchronise swatches, text styles, table formats and master pages between a book's chapters to ensure consistent presentation throughout a publication.
Each of a book's chapters contains an independent copy of swatches, text styles, table formats and master pages.
Editing this data in one chapter means that other chapters are out of sync. This may be intentional as part of your design but commonly you'll want to propagate changes to other chapters, e.g. when changing the font size of headings.
The Books panel allows you to do this easily when required. The process must be manually invoked but it is the most efficient way to reproduce changes across some or all of a book's chapters.
The first chapter that is added to a book becomes the book's Style Source Chapter, indicated by a key icon to its left. This status means the chapter contains what you consider to be up-to-date swatches, text styles, table formats and master pages.
The designated Style Source Chapter can be changed at any time, providing flexibility in the editing and propagation of data to your selected chapters (target chapters).
When the data in one or more chapters is outdated or incomplete, they can be synchronised with the Style Source Chapter.
Synchronisation is unidirectional from the Style Source Chapter to target chapters, i.e. it does not alter data in the Style Source Chapter.
Data that exists in a target chapter but not the Style Source Chapter is unaffected by synchronisation.
When you synchronise a target chapter with the Style Source Chapter, Affinity considers the following to determine what needs to be copied or updated: