.INDD File Extension

Adobe InDesign Document

Developer Adobe Systems
3.5  |  185 Votes

What is an INDD file?

An INDD file is a page layout project created with Adobe InDesign, a professional desktop publishing application. It includes page formatting information, content, linked files, styles, and swatches. INDD files commonly store books, magazines, newspapers, flyers, brochures, and mobile & webpage mockups.

More Information

Screenshot of a .indd file in Adobe InDesign 2023
INDD file open in Adobe InDesign 2023

Adobe InDesign is a well-known application used to design professional layouts for digital and print publishing. When you save a page layout with InDesign, the application creates an INDD file to store the contents of the design.

To create an INDD file with InDesign, select File → New → Document..., modify the document, then select File → Save As.... After saving an INDD file, you can close it, re-open it, and continue editing the document.

When your design is complete, and you no longer need to edit it in InDesign, you can export it to another format, such as .PDF, .EPUB, or .JPEG. To export an INDD file, select File → Export....

How to open an INDD file

You can open an INDD file with Adobe InDesign in Windows and macOS. To open it with InDesign, select File → Open... or double-click the file if it is associated with InDesign.

You can also open INDD files with Adobe's professional writing program, InCopy, and QuarkXpress.

How to convert an INDD file

Several applications, including Adobe InDesign and QuarkXPress, can convert INDD files to other formats.

For example, Adobe InDesign can convert INDD files to the following formats:

  • .PDF - Portable Document Format
  • .JPG - JPEG Image
  • .PNG - Portable Network Graphic
  • .EPS - Encapsulated PostScript
  • .EPUB - Open eBook
  • .HTML - HTML Webpage
  • .XML - Extensible Markup Language
  • .IDML - Adobe InDesign Markup Language
  • .INDT - Adobe InDesign Template
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