Hi @Salman_Faries ,
The Answer to “If both are doing the same” is a Big NO. But we can say the PDF activities does only the part of extracting the text whenever the Inputs/Document are PDF or Digital PDFs.
However, there’s a Lot more to Document Understanding than just extracting the text.
- Mainly Document Understanding is used when the dataset or document set contains a lot of different templates (Semi-Structured, Ex: Invoices from Different Vendors) and maybe also the case where there are mixture of different document types.
- Document Understanding feature/Product comes under the Term of Intelligent Document Processing/Extraction, where Machine Learning or AI capabilities are adopted and are in place for proper assurance of the required Outputs.
- Here, the DU has the feature/capability to also learn/re-train on how similar a human does the operation/task related to fetching the data within the documents/images.
- Proper Mapping is done when performing the Training/Re-Training so as to identify the required value for the Designated field.
Simply Walk through the Document Understanding Course in UiPath Academy and PDF activities for a better understanding as it does covers the Basic required differences and experiences :