* Added PDF table extraction feature with aligned Markdown (#1419)
* Add PDF test files and enhance extraction tests
- Added a medical report scan PDF for testing scanned PDF handling.
- Included a retail purchase receipt PDF to validate receipt extraction functionality.
- Introduced a multipage invoice PDF to test extraction of complex invoice structures.
- Added a borderless table PDF for testing inventory reconciliation report extraction.
- Implemented comprehensive tests for PDF table extraction, ensuring proper structure and data integrity.
- Enhanced existing tests to validate the order and presence of extracted content across various PDF types.
* fix: update dependencies for PDF processing and improve table extraction logic
* Bumped version of pdfminer.six
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Authored-by: Ashok <ashh010101@gmail.com>
* update markdown
* Update and install Python version suggestions
* Update README with prerequisites.
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Co-authored-by: Lucas Liu <lucas@LucasdeMacBook-Pro.local>
Co-authored-by: afourney <adamfo@microsoft.com>
fix: prevent path traversal vulnerabilities in ZipConverter
Added a secure check for path traversal vulnerabilities in the ZipConverter class.
Now validates extracted file paths using `os.path.commonprefix` to ensure all files
remain within the intended extraction directory. Raises a `ValueError` if a
path traversal attempt is detected.
- Normalized file paths using `os.path.normpath`.
- Added specific exception handling for `zipfile.BadZipFile` and traversal errors.
- Ensured cleanup of extracted files after processing when `cleanup_extracted` is enabled.
lesyk