# Processing Documents with Synchronous Operations

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This page was generated from content adapted from the [AWS Developer Guide](https://github.com/awsdocs/amazon-textract-developer-guide.git)
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## Calling Amazon Textract Synchronous Operations

* **Note**\
  If you're using the AWS CLI, you can't pass image bytes to Amazon Textract operations. Instead, you must reference an image stored in an Amazon S3 bucket.