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有没有办法解析 pdf 内容流并识别段落边界?我阅读了 ISO 32000-1:2008,但无法理解 pdf 内容流是否包含任何告诉显示软件开始段落或结束段落的运算符。任何文本提取器软件都可以喜欢pdfbox或xpdf提供该信息吗?
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