> For the complete documentation index, see [llms.txt](https://docs.unitlab.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.unitlab.ai/documentation/multimodal-annotations/media-and-document-layouts.md).

# Media and document layouts

Some decisions require a primary media source plus documents, transcripts, specifications, or audio context. The layout should make evidence accessible without creating ambiguity about what is being labeled.

![Medical media and PDF document layout](https://292810646-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FGjVLUz4wthGkGlRKM6rM%2Fuploads%2FQZdWfKj1GQBxWRof1s7r%2Fmedical-dicom-document.png?alt=media\&token=217997de-1a0e-4883-b14f-b3e44ce83dad)

*A contextual document can remain visible beside the active medical viewer so the specialist does not lose study context or annotate the wrong panel.*

The product’s stronger document story is contextual. A field incident may include a video, a report PDF, and audio; a medical case may include images and a clinical form; a support interaction may include text and speech. Grouping these sources into one task lets an annotator reason about the case rather than annotate unrelated files.

### Use this in production

* Identify one authoritative panel for each output type.
* Use stable slot names such as Primary image, Reference PDF, Audio, or Transcript.
* Define what happens when an optional context member is missing or unreadable.
* Keep page, time, and project-item navigation scopes distinct.
* Validate that downstream exports retain member identity and relationships.