Learning in public — this reference is being written in the open. Unfinished pages are excluded from search engines.

The IDML living
documentation

An independent, technically deep reference for the IDML file format and the Paged native renderer — authored from first principles, learning in public as the renderer teaches us. Every example is one our renderer accepts.

Engraved portrait of Johannes Gutenberg
Frontispiece · Johannes Gutenberg
c. 1400–1468

One page, one tier, one job.

Every page is written for a single reader and a single task. Filter the whole reference to your depth — no traffic lights, just the shape of the page you’re about to read.

I

Beginner

Plain-language explanations. Start here if IDML or paged media is new to you.

II

Intermediate

Working knowledge — package structure, stories, styles, and how pages compose.

III

Pro

Deep reference — geometry, edge cases, renderer behavior, and the format in full.