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* ([[OCR]]) [https://pdfcandy.com/tw/pdf-ocr.html PDF 轉文字–免費線上OCR轉換工具] 免費版限制:一小時轉換一個檔案,檔案大小也有限制{{access | date=2022-10-07}} | * ([[OCR]]) [https://pdfcandy.com/tw/pdf-ocr.html PDF 轉文字–免費線上OCR轉換工具] 免費版限制:一小時轉換一個檔案,檔案大小也有限制{{access | date=2022-10-07}} | ||
[https://www.xpdfreader.com/pdftotext-man.html pdftotext] (part of [https://www.xpdfreader.com/index.html XpdfReader]) | [https://www.xpdfreader.com/pdftotext-man.html pdftotext] (1) On {{Win}}: part of [https://www.xpdfreader.com/index.html XpdfReader] (2) On {{Mac}} & {{Linux}}: usually from [https://poppler.freedesktop.org/ Poppler]<ref>[https://brewinstall.org/install-pdftotext-mac-osx/ Install pdftotext on Mac OSX - Brew Cask | BrewInstall]</ref> (historically derived from Xpdf, see [https://en.wikipedia.org/wiki/Pdftotext pdftotext - Wikipedia]) | ||
* License: "The xpdf package is open source, dual licensed under GPL v2 and GPL v3."<ref>[https://www.xpdfreader.com/opensource.html Xpdf Open Source]</ref> {{Gd}} | {{access | date=2023-06-02}} | ||
* License: | |||
** Xpdf: "The xpdf package is open source, dual licensed under GPL v2 and GPL v3."<ref>[https://www.xpdfreader.com/opensource.html Xpdf Open Source]</ref> | |||
** Poppler: GPL v2 or later {{Gd}} | |||
* Usage: {{kbd | key=<nowiki>pdftotext [options] [PDF-file [text-file]]</nowiki>}} e.g. {{kbd | key=<nowiki>pdftotext -enc UTF-8 example.pdf example.txt</nowiki>}} | * Usage: {{kbd | key=<nowiki>pdftotext [options] [PDF-file [text-file]]</nowiki>}} e.g. {{kbd | key=<nowiki>pdftotext -enc UTF-8 example.pdf example.txt</nowiki>}} | ||