Hi All,

Can anyone let me know/help me if they have done any project of PDF OCR extraction using AI ML when the documents are of varying formats

Hi @marina.dutta

Please check this video


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Sure, I can guide you through the process. Extracting text from PDFs using OCR (Optical Character Recognition) with AI/ML techniques can be done in UiPath. Here’s a general outline of how you could approach this project:

  1. Install Required Packages: Ensure you have installed UiPath packages for PDF handling and OCR. UiPath.DocumentUnderstanding.ML and UiPath.IntelligentOCR.Activities are common packages used for this purpose.
  2. Preprocessing: Preprocess the PDF documents if needed, like deskewing or removing noise to improve OCR accuracy.
  3. PDF Reading: Use UiPath activities to read PDF documents. This can be done using the Read PDF Text activity.
  4. OCR Extraction: Apply OCR techniques to extract text from PDFs. UiPath offers activities like OCR Text Extraction, IntelligentOCR activities, or you can integrate third-party OCR engines like Google Cloud Vision API or Microsoft Azure OCR.
  5. Handling Varying Formats: Since your documents have varying formats, you might need to adjust your OCR pipeline accordingly. This could involve using different OCR engines for different formats or training custom models if the variations are significant.
  6. Text Processing: Process the extracted text as needed. This may include cleaning up the text, extracting specific information, or performing natural language processing tasks.
  7. Integration with AI/ML Models: If you want to leverage AI/ML models for advanced processing, you can integrate them into your workflow. This could involve sentiment analysis, entity recognition, or any other task relevant to your project.
  8. Error Handling and Logging: Implement error handling and logging mechanisms to track any issues that arise during the extraction process.
  9. Testing and Validation: Test your workflow with various PDF documents to ensure it works reliably across different formats. Validate the accuracy of the extracted text against the original documents.
  10. Deployment: Once your workflow is tested and validated, deploy it to your production environment for regular use.

If you encounter any specific challenges or need further assistance with any step, feel free to ask!

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Thanks Jayesh. Will ask for help if needed while doing the use case

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