> [!WARNING]
>
> **Beta**
>
>
> This product is
>
> subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the
> [Service Specific
> Terms](https://docs.cloud.google.com/terms/service-terms#1).
>
> Pre-GA products are available "as is" and might have limited support.
>
> For more information, see the
> [launch stage descriptions](https://cloud.google.com/products/#product-launch-stages).

## Libraries and API reference

- [### Client libraries
  Get started with Document AI in your language of choice.](https://docs.cloud.google.com/document-ai/docs/libraries)
- [### Document AI REST API v1
  v1 REST API Reference.](https://docs.cloud.google.com/document-ai/docs/reference/rest/v1/projects.locations.processors)
- [### Document AI REST API v1beta3
  v1beta3 REST API Reference.](https://docs.cloud.google.com/document-ai/docs/reference/rest/v1beta3/projects.locations.processors)
- [### Document AI RPC API v1
  v1 gRPC API Reference.](https://docs.cloud.google.com/document-ai/docs/reference/rpc/google.cloud.documentai.v1)
- [### Document AI RPC API v1beta3
  v1beta3 gRPC API Reference.](https://docs.cloud.google.com/document-ai/docs/reference/rpc/google.cloud.documentai.v1beta3)

## IAM for Document AI

- [### IAM permissions for Document AI
  A list of IAM permissions that apply specifically to
  Document AI.](https://docs.cloud.google.com/document-ai/docs/access-control/iam-permissions)
- [### IAM roles for Document AI
  A list of IAM roles that apply specifically to
  Document AI.](https://docs.cloud.google.com/document-ai/docs/access-control/iam-roles)

## Processor details

- [### Supported files
  See a list of file types supported by Document AI and recommended resolutions.](https://docs.cloud.google.com/document-ai/docs/file-types)
- [### Fields detected
  See a list of fields detected by each processor type.](https://docs.cloud.google.com/document-ai/docs/fields)
- [### Sample processor output
  See the output returned by each processor type.](https://docs.cloud.google.com/document-ai/docs/output)

## Misc.

- [### Language support
  Learn about supported languages for different processors.](https://docs.cloud.google.com/document-ai/docs/languages)

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- [### Migrating from v1beta2
  Reference document for moving from the deprecated \`v1beta2\` to GA'd \`v1\`.](https://docs.cloud.google.com/document-ai/docs/migration-from-v1beta2)