Unverified95% confidenceFactTime unknown
PDF内部结构是基于PostScript的页面描述语言，包含字体嵌入、图层、加密等复杂元数据，需要通过PyMuPDF、pdfplumber等专用解析库才能提取可读文本
1
Sources
95%
Confidence
Long-term
Relevance
5/31/2026
First Seen
Sources
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