Extract text from InDesign books (INDB)
To convert INDB books to another format, you need Adobe InDesign or other Page Layout software.
To convert other file formats to the "InDesign Book File" file type, you need software like Adobe InDesign or a similar tool.
The .INDB file extension represents an InDesign Book file. It is used by Adobe InDesign to group multiple INDD documents into a single, cohesive publication. This format is essential for large projects like books or magazines because it synchronizes page numbers, styles, and swatches across different chapters.
The main disadvantage of the .INDB format is that it is strictly a proprietary organizational tool, not a standalone document. It requires a costly $22.99/month subscription to open. Crucially, an .INDB file does not contain actual text, fonts, or images; it only contains file path links to the component INDD files on the creator's hard drive. If a designer sends you only the .INDB file, you cannot view the book or extract any content.
Because of this structure, standard online converters fail to process .INDB files. They lack access to your local linked files and the proprietary Adobe rendering engine required to generate the layouts. To share a complete book, you must open the .INDB file in Adobe InDesign and export the entire book to a universal format like PDF or EPUB.
This closed format is notoriously difficult to open or convert externally. Often, only the original software can properly read or export the data. If our analysis detects supported underlying text or embedded format metadata, viewing partial information might still be possible.
Convert.Guru analyzes your INDB file, detects the exact format, and lets you read the text inside.
Users also converted INDD, PDF and IDML files.
If you want to convert INDB file to PDF, INDD, QXP, PUB, PMD, PM6, PM7, PM8, PM9, PM10, PM11 or OMP, you can use Adobe InDesign or similar software from the "Organize InDesign Documents" category. In the File menu, look for Save As… or Export….
To convert MDI, PUB, PDP, PM4, P65, COMIC, WEBTEMPLATE, PMD, SPUB, INDD, PM5 or QXP files to INDB, try Adobe InDesign or another comparable tool in the "Organize InDesign Documents" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our INDB converter.