pdf-inspector
pdf-inspector 对比与选型：本地解析、OCR 还是托管管线
按版面质量、隐私、时延、成本和运维选择。
你将学会
- Trace detection and layout stages
- Run native extraction and OCR safely
- Design provenance checks
开始前需要
- Basic Git and command-line usage
- Comfort reading a project README
You can explain the project, run its documented first step, and decide what to verify before adopting it.
先看结论
- Document mix determines the best parser.
- Equal fixtures expose layout and OCR trade-offs.
- A stable output contract preserves exit options.
Match the document mix
用同一文本、扫描、混合、分栏、CJK、表格和坏字体语料比较候选，并用规范化输出契约保留迁移路径。
Use the pinned source evidence, record versions and assumptions, and ask a qualified reviewer to validate the result before adopting it.
Run an equal fixture
Compare text, scanned, mixed, columns, CJK, forms, tables, and broken fonts using the same corpus. Score extraction quality, page provenance, latency, privacy, integration effort, and failure recovery.
Choose an exit path
Keep the original PDF and a normalized output contract so switching engines does not rewrite downstream systems. Document when to route to OCR or human correction.
Use the pinned source evidence, record versions and assumptions, and ask a qualified reviewer to validate the result before adopting it.
如何选择
| 比较维度 | 方案 A | 方案 B |
|---|---|---|
| Best when | You need predictable behavior and easy auditing | You need adaptive optimization and have reliable telemetry |
| Main risk | May leave performance on the table | Can become difficult to explain or debug |
实施步骤
- 1
Classify your corpus and constraints.
- 2
Benchmark native and OCR candidates.
- 3
Compare privacy, cost, and operations.
- 4
Document routing and migration triggers.
可复制示例
corpus -> native parser | OCR service | hosted pipeline
quality | provenance | latency | privacy | cost
normalized Markdown + fallback policy常见问题
Is pdf-inspector a full OCR replacement?
No. It provides selective local OCR integration; a hosted or specialized OCR path may still fit difficult documents.
When is a hosted pipeline preferable?
When managed OCR breadth and operations outweigh local control and data-residency requirements.
资料来源
- pdf-inspector README (captured 2026-08-31)来源核查 2026-08-31
- pdf-inspector repository来源核查 2026-08-31