## 1. Implementation
- [ ] 1.1 Create pdfplumber_extractor.py module with extract_tables_with_pdfplumber function
- [ ] 1.2 Add pdfplumber engine choice to CLI argument parser
- [ ] 1.3 Add pdfplumber-specific CLI options (table settings)
- [ ] 1.4 Implement engine routing logic in cli.py
- [ ] 1.5 Add pdfplumber dependency checking
- [ ] 1.6 Test extraction on sample/test.pdf
- [ ] 1.7 Update help documentation with pdfplumber options
- [ ] 1.8 Add validation to prevent incompatible options with pdfplumber

## 2. Testing
- [ ] 2.1 Test on sample/test.pdf (scanned PDF)
- [ ] 2.2 Test with page range selection
- [ ] 2.3 Test with merge_output functionality
- [ ] 2.4 Test resume functionality
- [ ] 2.5 Test error handling for missing pdfplumber dependency

## 3. Documentation
- [ ] 3.1 Update README with pdfplumber engine description
- [ ] 3.2 Add usage examples to CLI help
- [ ] 3.3 Update project documentation