pdfminer.six
Pure-Python PDF text extraction library (maintained fork of pdfminer) that parses PDF structure and returns text with precise character-level position coordinates.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Pure Python with no native binary code reduces attack surface; still process only trusted PDFs as malformed inputs can cause excessive memory or CPU usage
⚡ Reliability
Best When
You need character-level position data for layout reconstruction or you require a pure-Python solution with zero binary dependencies.
Avoid When
Processing thousands of PDFs in a batch pipeline where extraction speed is the primary constraint.
Use Cases
- • Extracting text with exact bounding box coordinates for layout-aware document processing
- • Parsing PDFs in environments where binary C extensions cannot be installed
- • Reconstructing reading order from complex multi-column or magazine-style PDF layouts
- • Extracting text from password-protected PDFs by supplying the decryption password
- • Analyzing PDF internal structure (fonts, objects, streams) for forensic or debugging purposes
Not For
- • High-throughput bulk extraction where speed is critical (PyMuPDF is 5-10x faster)
- • Extracting images or rendering pages to raster graphics (use PyMuPDF for that)
- • Scanned PDFs where text is embedded in images rather than as native PDF content
Interface
Authentication
Local Python library — no authentication required
Pricing
MIT license. pdfminer.six is the community-maintained fork of the original pdfminer project. Completely free with no usage restrictions.
Agent Metadata
Known Gotchas
- ⚠ The high-level extract_text() helper discards layout information — agents needing coordinates must use the lower-level LAParams + PDFPageAggregator pipeline
- ⚠ Some PDFs with custom encodings return garbled Unicode; there is no automatic fallback or warning
- ⚠ Significantly slower than PyMuPDF — benchmark before using in latency-sensitive agent steps
- ⚠ Silently returns empty string for image-only (scanned) PDFs with no exception raised
- ⚠ pdfminer (unmaintained original) and pdfminer.six coexist on PyPI — always install pdfminer.six to avoid installing the dead package
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for pdfminer.six.
Scores are editorial opinions as of 2026-03-06.