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Technical Notes on PDF Table Parsing | |||
PDF table parsing usually cannot rely solely on the raw output produced by tools such as <code>pdfplumber.extract_tables()</code>, Camelot, Tabula, or similar libraries. Since PDF is primarily a layout-oriented format rather than a structured data format, practical implementations often require additional rules, state management, and post-processing steps in order to produce stable and usable datasets. | PDF table parsing usually cannot rely solely on the raw output produced by tools such as <code>pdfplumber.extract_tables()</code>, Camelot, Tabula, or similar libraries. Since PDF is primarily a layout-oriented format rather than a structured data format, practical implementations often require additional rules, state management, and post-processing steps in order to produce stable and usable datasets. | ||
=== Comparison of Different Parsers === | |||
# | # [https://github.com/jsvine/pdfplumber pdfplumber] requires writing code to process the data. | ||
# | # [https://www.xpdfreader.com/pdftotext-man.html pdftotext] with the `-layout` option: The drawback is that columns are aligned using spaces, rather than being extracted as a truly structured table. | ||
# [https://jina.ai/ jina.ai parser]: The drawback is that columns are aligned using spaces, rather than being extracted as a truly structured table. | |||
# | |||
=== 1. Terminology === | === 1. Terminology === | ||