Books

Voltis supports scanning .epub files. It extracts metadata and the cover image, and the reader has paged and scrolling modes, with one or two pages side by side in paged mode.

Filesystem layout

No specific layout is expected for books. Series are taken from the epub metadata, using the EPUB 3 belongs-to-collection and group-position fields, or Calibre's calibre:series and calibre:series_index.

Books without series metadata can be grouped by the volume number in their title, or in their file name if the title has none. This is controlled by the "Series without metadata" library setting, and is on by default. We look for Vol., Volume or v followed by a number, preceded by the series name, for example Series Vol. 3: Subtitle or Series v03 [Group]. Groups of [], () and {} at the end of file names are ignored.

We don't infer a series when:

• The name contains a volume range (v1-3) or more than one volume number.
• It looks like a special: SP01, short or side stories, bonus, extra, or exclusive.
• The title and file name both have a volume number, and they differ.

A standalone book whose file name matches a series name is added to that series. Changing the setting only regroups existing books on the next forced scan.

Books with SP, SPnn or Omake in their title or file name, or a Calibre series index of 10000 or more, are marked special, as for comics.