PP-Structure
by Baidu
Open SourceSelf-HostedApache-2.0
Full document analysis pipeline combining layout detection, table recognition, and OCR. Part of the PaddlePaddle ecosystem.
OCRLayout AnalysisTable ExtractionData Extraction
Overview
PP-Structure is Baidu's comprehensive document analysis toolkit, built on top of PaddleOCR. It goes beyond basic OCR to provide layout analysis, table structure recognition, and key information extraction in a unified pipeline.
The toolkit includes pre-trained models for document layout detection (based on PicoDet and LayoutXLM), table recognition, and form field extraction. All components are optimized for practical deployment with PaddlePaddle's inference acceleration.
PP-Structure achieved top scores in the OmniDocBench evaluation for combined document understanding tasks.
Strengths
- Full document analysis pipeline (OCR + layout + tables)
- Strong benchmark performance (OmniDocBench)
- GPU and CPU optimized inference
- Active development from Baidu
- Handles Chinese and English documents well
Limitations
- PaddlePaddle dependency (less common than PyTorch)
- Documentation primarily in Chinese
- More complex setup than standalone OCR
Best Use Cases
- Chinese document processing
- Table extraction from PDFs
- Form field extraction
- Full document understanding pipelines