activities

latest

false

Overview
- About the Document Understanding activities
Document Processing Contracts
- Release notes
- About the Document Processing Contracts
- Classes
  - Box Class
  - IPersistedActivity interface
  - PrettyBoxConverter Class
  - IClassifierActivity Interface
  - IClassifierCapabilitiesProvider Interface
  - ClassifierDocumentType Class
  - ClassifierResult Class
  - ClassifierCodeActivity Class
  - ClassifierNativeActivity Class
  - ClassifierAsyncCodeActivity Class
  - ClassifierDocumentTypeCapability Class
  - ContentValidationData Class
  - EvaluatedBusinessRulesForFieldValue Class
  - EvaluatedBusinessRuleDetails Class
  - ExtractorAsyncCodeActivity Class
  - ExtractorCodeActivity Class
  - ExtractorDocumentType Class
  - ExtractorDocumentTypeCapabilities Class
  - ExtractorFieldCapability Class
  - ExtractorNativeActivity Class
  - ExtractorResult Class
  - FieldValue Class
  - FieldValueResult Class
  - ICapabilitiesProvider Interface
  - IExtractorActivity Interface
  - ExtractorPayload Class
  - DocumentActionPriority Enum
  - DocumentActionData Class
  - DocumentActionStatus Enum
  - DocumentActionType Enum
  - DocumentClassificationActionData Class
  - DocumentValidationActionData Class
  - UserData Class
  - Document Class
  - DocumentSplittingResult Class
  - DomExtensions Class
  - Page Class
  - PageSection Class
  - Polygon Class
  - PolygonConverter Class
  - Metadata Class
  - WordGroup Class
  - Word Class
  - ProcessingSource Enum
  - ResultsTableCell Class
  - ResultsTableValue Class
  - ResultsTableColumnInfo Class
  - ResultsTable Class
  - Rotation Enum
  - Rule Class
  - RuleResult Class
  - RuleSet Class
  - RuleSetResult Class
  - SectionType Enum
  - WordGroupType Enum
  - IDocumentTextProjection Interface
  - ClassificationResult Class
  - ExtractionResult Class
  - ResultsDocument Class
  - ResultsDocumentBounds Class
  - ResultsDataPoint Class
  - ResultsValue Class
  - ResultsContentReference Class
  - ResultsValueTokens Class
  - ResultsDerivedField Class
  - ResultsDataSource Enum
  - ResultConstants Class
  - SimpleFieldValue Class
  - TableFieldValue Class
  - DocumentGroup Class
  - DocumentTaxonomy Class
  - DocumentType Class
  - Field Class
  - FieldType Enum
  - FieldValueDetails Class
  - LanguageInfo Class
  - MetadataEntry Class
  - TextType Enum
  - TypeField Class
  - ITrackingActivity Interface
  - ITrainableActivity Interface
  - ITrainableClassifierActivity Interface
  - ITrainableExtractorActivity Interface
  - TrainableClassifierAsyncCodeActivity Class
  - TrainableClassifierCodeActivity Class
  - TrainableClassifierNativeActivity Class
  - TrainableExtractorAsyncCodeActivity Class
  - TrainableExtractorCodeActivity Class
  - TrainableExtractorNativeActivity Class
  - BasicDataPoint Class - preview
  - ExtractionResultHandler Class - preview
Document Understanding ML
- Release notes
Document Understanding OCR Local Server
- Release notes
- About the Document Understanding OCR Local Server package
- Project Compatibility
Document Understanding
- Release notes
- About the Document Understanding activity package
- Project compatibility
- Document data
  - Methods
- Configuring external connection
- Activities
  - Set PDF Password
  - Merge PDFs
  - Get PDF Page Count
  - Extract PDF Text
  - Extract PDF Images
  - Extract PDF Page Range
  - Extract Document Data
  - Create Validation Task and Wait
  - Wait for Validation Task and Resume
  - Create Validation Task
  - Classify Document
  - Create Classification Validation Task
  - Create Classification Validation Task and Wait
  - Wait for Classification Validation Task and Resume
- Document Understanding Activities how-to guides
  - Create Pre-Hire in Workday Based on CV
  - Generative extractor - Good practices
  - Generative classifier - Good practices
Intelligent OCR
- Release notes
- About the IntelligentOCR activity package
- Project compatibility
- Activities
  - Load Taxonomy
  - Digitize Document
  - Classify Document Scope
  - Keyword Based Classifier
  - Document Understanding Project Classifier
  - Intelligent Keyword Classifier
  - Present Classification Station
    - Using the Classification Station
  - Create Document Classification Action
  - Create Document Validation Artifacts
  - Retrieve Document Validation Artifacts
  - Wait For Document Classification Action And Resume
  - Train Classifiers Scope
  - Keyword Based Classifier Trainer
  - Intelligent Keyword Classifier Trainer
  - Data Extraction Scope
  - Document Understanding Project Extractor
  - Document Understanding Project Extractor Trainer
  - RegEx Based Extractor
  - Form Extractor
  - Intelligent Form Extractor
  - Present Validation Station
    - Classic Validation Station
    - Compact Validation Station
  - Redact Document
  - Create Document Validation Action
  - Wait For Document Validation Action And Resume
  - Train Extractors Scope
  - Export Extraction Results
  - Machine Learning Extractor
  - Machine Learning Extractor Trainer
  - Machine Learning Classifier
  - Machine Learning Classifier Trainer
  - Generative Classifier
  - Generative Extractor
- Configuring Authentication
- IntelligentOCR how-to guides
  - Validating documents with App actions
  - Manual validation for digitize documents
  - Anchor-based data extraction using Intelligent Form Extractor
  - Validation station
  - Generative activities - Good practices
  - Generative extractor - Good practices
  - Generative classifier - Good practices
ML Services
- Release notes
- About the ML Services activity package
- Project compatibility
- Activities
  - ML Skill
  - Upload File
  - Create Labeling Task
OCR
- Release notes
- About the OCR activity package
- Project compatibility
- Activities
  - UiPath Screen OCR
  - UiPath Document OCR
  - UiPath Chinese, Japanese, Korean OCR
  - UiPath Extended Languages OCR
OCR Contracts
- Release notes
- About the OCR Contracts
- Project compatibility
- Classes
  - IOCRActivity Interface
  - OCRAsyncCodeActivity Class
  - OCRCodeActivity Class
  - OCRNativeActivity Class
  - Character Class
  - OCRResult Class
  - Word Class
  - FontStyles Enum
  - OCRRotation Enum
  - OCRCapabilities Class
  - OCRScrapeBase Class
  - OCRScrapeFactory Class
  - ScrapeControlBase Class
  - ScrapeEngineUsages Enum
  - ScrapeEngineBase
  - ScrapeEngineFactory Class
  - ScrapeEngineProvider Class
OmniPage
- Release notes
- About the OmniPage activity package
- Project compatibility
- Activities
  - OmniPage OCR
- OmniPage how-to guides
  - Using OmniPage with an extended language
PDF
- Release notes
- About the PDF activity package
- Project compatibility
- Activities
  - Get PDF Page Count
  - Read PDF Text
  - Read PDF With OCR
  - Read XPS Text
  - Read XPS With OCR
  - Export PDF Page As Image
  - Extract Images From PDF
  - Extract PDF Page Range
  - Join PDF Files
  - Manage PDF Password
- PDF how-to guides
  - Read PDF files
  - Read XPS files
[Unlisted] Abbyy
- Release notes
- About the Abbyy activity package
- Project compatibility
- Activities
  - Abbyy OCR
  - Abbyy Cloud OCR
  - FlexiCapture Classifier
  - FlexiCapture Extractor
  - FlexiCapture Scope
  - Classify Document
  - Process Document
  - Validate Document
  - Export Document
  - Get Field
  - Get Table
  - Prepare Validation Station Data
[Unlisted] Abbyy Embedded
- Release notes
- About the Abbyy Embedded activity package
- Project compatibility
- Activities
  - Abbyy Screen OCR
  - Abbyy Document OCR

Document Understanding Activities

Last updated Apr 1, 2026

About the Document Understanding activity package

The UiPath.DocumentUnderstanding.Activities package enables the usage of a complete document processing framework, from taxonomy definition, digitization, document classification, data extraction, and data validation.

Note: The namespace of UiPath.DocumentUnderstanding.Activities is UiPath.IntelligentOCR.StudioWeb.Activities.

Known limitation

If you are using "Wait for" type activities that suspend workflows and you are working with DataTable variables, it is crucial that DataTable variables are serializable. For example, if a DataTable variable is initialized with

new
                  System.Data.DataTable

, then it becomes non-serializable, and this can cause your project execution to fail. To prevent this, you can either: leave the default value of the DataTable variable empty, or assign a name to the DataTable variable, such as:

new
                  System.Data.DataTable("MyTable")

Activity packages compatibility

UiPath.IntelligentOCR.Activities and UiPath.DocumentUnderstanding.Activities should not be used together in the same project. The UiPath.IntelligentOCR.Activities package should be used for Windows (or Windows-Legacy) workflows, while the UiPath.DocumentUnderstanding.Activities package should be used for Windows and Cross-platform workflows.

Note: Before using the Monitor feature, take into consideration the following:

Only UiPath.DocumentUnderstanding.Activities v 2.7.0 or newer versions support Monitor;
Only IntelligentOCR.Activities v6.20 or newer versions include the Document Understanding Project Extractor activity which supports Monitor

On this page

Known limitation
Activity packages compatibility

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