Registered by Robert Kubík (Pastierovič)

Advanced Comic Book Format (ACBF) specification is a distribution and interchange format for digital comic books. ACBF specification defines a means of representing structured and semanticaly enhanced content used in comic books. In contrast to widely used Comic Book Archive (CBR, CBZ …), format defines comic structure and content can be represented in separate graphic and text translation layer(s) as well as comic book metadata is present.

Some of the properties of ACBF are:
• Definition of comic book metadata (title, authors, genres ...)
• Definition of comic book structure (pages, frames) as well as order in which they follow
• Indexing of comic book pages (creation of Table of Contents upon page title)
• Definition of text layer separate from background graphics as well as reading order of text areas in it
• Definition of semantics on the text layer (e.g. emphasis, code, speech, commentary …)
• Support for more text layers in one document (translations to different languages)

ACBF aims to be used as a digital comic book format that is able to properly represent any comic books content and at the same time be suitable for automatic processing, indexing, comic book collection management and conversion into other formats.

ACBF is an extension of XML. Some inspiration regarding meta-data and semantics of the text layer comes from Fictionbook (file format that is used for electronic books distribution) and ACV 2 (comic book format used by Droid Comic Viewer).

ACBF does not use any kind of DRM (Digital Rights Management) and all specifications are open.

PPA repository is available at:
Free comic books in ACBF format can be downloaded from:

Check out the Wiki page and ACBF Viewer screenshots below.

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Robert Kubík (Pastierovič)
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GNU GPL v2, GNU GPL v3, Creative Commons - Attribution Share Alike

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trunk series is the current focus of development.

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XML, Python

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  • ACBF Editor 1.17 is out. on 2019-12-09
    ACBF Editor 1.17 is out. Changes are: - added more zoom levels in frame edito...
  • ACBF Viewer 2.10 is out on 2019-11-10
    ACBF Viewer 2.10 is out. Changes are: - text area fitting algorithm improveme...
  • ACBF Editor 1.16 is out on 2019-11-06
    ACBF Editor 1.16 is out. Changes are: - text layer fitting algorithm improvem...
  • ACBF Viewer 2.01 is out on 2019-01-02
    ACBF Viewer 2.01 is out. This is a fix release which fixes several bugs which...
  • ACBF Viewer 2.00 is out on 2018-11-04
    ACBF Viewer 2.00 is out. Changes are: - code has been ported to Python 3 and ...