document-understanding
latest
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- Overview
- Getting started
- Activities
- Insights dashboards
- Document Understanding Process
- Quickstart tutorials
- Framework components
- Model Details
- Overview
- Document Understanding - ML package
- DocumentClassifier - ML package
- ML packages with OCR capabilities
- 1040 - ML package
- 1040 Schedule C - ML package
- 1040 Schedule D - ML package
- 1040 Schedule E - ML package
- 1040x - ML package
- 3949a - ML package
- 4506T - ML package
- 709 - ML package
- 941x - ML package
- 9465 - ML package
- ACORD125 - ML package
- ACORD126 - ML package
- ACORD131 - ML package
- ACORD140 - ML package
- ACORD25 - ML package
- Bank Statements - ML package
- Bills Of Lading - ML package
- Certificate of Incorporation - ML package
- Certificate of Origin - ML package
- Checks - ML package
- Children Product Certificate - ML package
- CMS 1500 - ML package
- EU Declaration of Conformity - ML package
- Financial Statements - ML package
- FM1003 - ML package
- I9 - ML package
- ID Cards - ML package
- Invoices - ML package
- Invoices Australia - ML package
- Invoices China - ML package
- Invoices Hebrew - ML package
- Invoices India - ML package
- Invoices Japan - ML package
- Invoices Shipping - ML package
- Packing Lists - ML package
- Payslips - ML package
- Passports - ML package
- Purchase Orders - ML package
- Receipts - ML package
- Remittance Advices - ML package
- UB04 - ML package
- Utility Bills - ML package
- Vehicle Titles - ML package
- W2 - ML package
- W9 - ML package
- Other Out-of-the-box ML Packages
- Public endpoints
- Traffic limitations
- OCR Configuration
- Pipelines
- OCR services
- OCR services
- Supported languages
- Deep Learning
- Data and security
- Licensing and Charging Logic
Document Understanding classic user guide
Last updated Apr 23, 2026
OCR services
About OCR services
OCR services are used for the following purposes:
- At data labeling time, when importing documents into Document Manager. The engines available for this step are UiPath Document OCR, Google Cloud Vision OCR, and Microsoft Read OCR.
- At run time when calling models from RPA workflows. Visit OCR Engines to check the engines available for this step.
Configure OCR service in Document Manager and AI Center Document Understanding™ ML packages
The following table describes how to configure the six supported OCR engine types in both Document Manager and AI Center.
Important:
The ocr.method argument corresponds to the OCR Engine dropdown in the ML Package creation view in AI Center.
| OCR Engine | OCR Method | OCR Key | OCR URL |
|---|---|---|---|
| UiPath | UiPath Document OCR (Cloud and On-Premises) UiPathDocumentOCR_CPU(On-Premises) OCR for Chinese, Japanese, Korean (Cloud and On-Premises) | Automation Suite API Key Enterprise Plan | The ML Skill URL generated after deploying UiPath Document OCR. |
| Google Cloud Vision OCR | GCP Console API Key | https://vision.googleapis.com/v1/images:annotate | |
| Microsoft Read 2.0 On-Prem | Microsoft Read OCR | None | http://<IP_addr>:<port_number>/vision/v2.0/read/core/Analyze |
| Microsoft Read 2.0 Azure | Microsoft Read OCR | API Key for your resource from Azure Portal | <Azure_resource_Endpoint>/vision/v2.0/read/core/asyncBatchAnalyze |
| Microsoft Read 3.2 On-Prem | Microsoft Read OCR | None | http://<IP_addr>:<port_number>/vision/v3.2/read/analyze |
| Microsoft Read 3.2 Azure | Microsoft Read OCR | API Key for your resource from Azure Portal | <Azure_resource_Endpoint>/vision/v3.2/read/analyze |