> For the complete documentation index, see [llms.txt](https://docs.datasaur.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.datasaur.ai/data-studio-projects/nlp-task-types/document-based.md).

# Document Based

**Document labeling** allows you to label entire documents at once. This is useful when answering questions about documents, such as `.pdf`, or when classifying images.

<figure><img src="https://448889121-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MbjY0HseEqu7LtYAt4d%2Fuploads%2Fgit-blob-5528612a8dc9d4ebfd62faf8125b9e8511d86974%2FProject%20-%20document%20labeling%20-%20reviewer%20mode%20-%20not%20answered.png?alt=media" alt=""><figcaption></figcaption></figure>