Organize a LibreOffice Book with Linked Master Documents

Use one LibreOffice Writer file for each chapter and one master document to assemble them into a book. Save chapters as .odt files and the book container as an .odm file. Add the chapter files through the Navigator in reading order, use consistent heading and page styles, then insert a table of contents in a text section and update it before export. The master document stores links to the chapter files, so keep the whole project together and back up every file.

Plan the book files before writing

A master document is a container that combines linked Writer documents for printing and export. It is useful when a book is long enough that chapters are easier to edit as separate files, or when multiple people work on different chapters. It does not merge the chapter text into a single ordinary document: the master document links to subdocuments, and those files remain independent.

This is a flexible arrangement, not a rule. For example, you can keep a preface as a subdocument if you expect it to be edited like a chapter. A practical folder might look like this:

BookProject/
  Book.odm
  01_FrontMatter.odt
  02_Preface.odt
  03_Chapter1.odt
  04_Chapter2.odt
  99_BackMatter.odt

Use simple file names and keep them in one project folder while you build the book. Because the master document links to its subdocuments, moving or renaming files later can break those links. Save a backup copy before large reorganizations or format conversions.

Create the master document

1. In Writer, choose File > New > Master Document. LibreOffice opens a new master document and its Navigator view.
2. Save it in the project folder as Book.odm. The .odm extension identifies an OpenDocument Master Document; chapter files use .odt.
3. Use the Text entry in the master-document Navigator for material that belongs directly in the container, such as a title page or copyright notice. Add a short piece of text if you want a starting point for the master document’s styles.

If you already drafted a large document and divided it using consistent heading styles, the Writer Guide also documents a route through File > Send > Create Master Document. That workflow splits a document at a selected outline level and creates subdocuments. Review the generated files and links carefully before relying on it for an existing manuscript.

Add chapters and control their order

1. Open the Navigator with F5 if it is not visible, and make sure it is in Master View.
2. Select the Text entry, then use the Navigator’s Insert > File command or right-click Text and choose Insert > File. Choose an existing chapter .odt file.
3. Repeat for the other chapters. A subdocument is inserted before the item currently selected in the Navigator, so check the order as you go. If the sequence is wrong, drag entries into place or use the Move Up and Move Down controls.
4. Save the .odm file after adding or rearranging chapters. Double-click a subdocument in the Navigator when you need to edit its text; edits made in the separate chapter file are reflected through the link.

For a large project, give chapters numbered file names such as 03_Chapter1.odt and keep a separate outline or chapter list. File names help you stay organized, but the Navigator order controls the assembled book. Do not assume alphabetic sorting will determine the final sequence.

Keep formatting consistent and add book contents

Create chapter files from the same Writer template when possible. Use paragraph styles such as Heading 1 for chapter titles and lower heading levels for sections instead of formatting headings only with larger or bold text. These styles make the document structure easier to maintain and provide outline levels that a table of contents can use.

Style names matter across a master document. When different subdocuments define the same style name differently, the master document’s formatting can take precedence in the assembled view, and the individual chapter file keeps its own formatting when opened separately. A shared template reduces those conflicts. If the combined book looks different from a standalone chapter, inspect matching style names in the master and chapter files before applying manual fixes.

To add a table of contents, create or select a Text section where it should appear, place the cursor there, and choose Insert > Table of Contents and Index > Table of Contents, Index or Bibliography. Set the type to Table of Contents and confirm the options. Writer builds entries from paragraph styles and outline levels, so apply heading styles consistently in each chapter first.

Revise, verify, and export

When you edit a chapter, save that chapter file, return to the master document, and use the Navigator’s update controls if linked content or indexes have not refreshed. To update the table of contents, right-click it and choose Update Index or Table of Contents, or use Tools > Update > All Indexes and Tables. Then check chapter order, page breaks, headers, footers, page numbering, and the contents page in the combined view. Master-document printing includes the subdocuments and indexes; export to PDF from the master document when you are ready to review the complete book.

• Open the .odm file and confirm every chapter appears in the Navigator.
• Double-click a few chapter entries and confirm Writer opens the expected .odt source.
• Update indexes and contents, then scan the complete view for missing links, unexpected style changes, and pagination problems.
• Export a review PDF and compare its chapter sequence and page numbers with your manuscript outline.

Master documents work best when the chapter files remain available at their linked locations. If you need one portable file for another editor or a publishing workflow, export or create a conventional text document and inspect the result; subdocuments can be represented as sections, so do not assume conversion removes all structural links. For detailed current menu steps, see the LibreOffice Help for master documents, the Help page on subdocuments and style behavior, and Chapter 16 of the Writer Guide 26.2.