Reference

INDD (Adobe InDesign)

INDD is the native document format of Adobe InDesign, the page-layout app for brochures, magazines, books, and flyers. An INDD stores the full editable layout — text, frames, styles, and links to placed images — and is normally exported to PDF for sharing.

Files & formatsGeneral

INDD (Adobe InDesign)

Also known as: indd file, InDesign document, .indd

Native Adobe InDesign layout format
Stores editable text, frames, styles, and links
Exported to PDF for sharing and print

A page-layout working file

An .indd file is an Adobe InDesign project: the arrangement of text frames, image frames, paragraph and character styles, master pages, and color settings that make up a multi-page layout. It is the source you edit, not the finished deliverable.

InDesign usually references placed photos and graphics as linked files rather than embedding them, so a complete project is the .indd plus its linked image and font assets.

Sharing and storage

To hand off a finished layout, you export to PDF for printing or viewing, since recipients without InDesign cannot open .indd. The PDF is the shareable result; the INDD stays the editable master.

A document with many pages and high-resolution linked images can grow large, and packaging a project gathers all those links together. Keep the .indd and its assets while editing, then archive them once the PDF is final to free space.

Related terms

Keep reading the reference.

Files & formatsPDFPDF (Portable Document Format) is a fixed-layout document format that looks the same on any device. Most PDFs are small, but scanned documents and image-heavy files can grow large, and they accumulate quietly in Downloads and the Files app.General Files & formatsEPSEPS (Encapsulated PostScript) is a vector graphics format used mainly for logos, illustrations, and print artwork. Like other vector files, it stores shapes as math rather than pixels, so it scales to any size — though it is an older format now often replaced by SVG and PDF.General Files & formatsPSD (Photoshop document)PSD (Photoshop Document) is Adobe Photoshop’s native file format. It preserves a full editable project — layers, masks, text, smart objects, and effects — which makes it powerful for editing but much larger than a flattened JPEG or PNG export.General Editing & toolsFile format conversionFile format conversion re-encodes a file from one type to another — for example HEIC to JPEG, PNG to WebP, or one color profile to another — so it opens where you need it. Conversion can change file size and compatibility, and it often strips metadata in the process.General