将.doc格式文档转为txt格式

libreoffice –headless –convert-to txt path-to-your-doc.doc

同样可以指定转换后的文件输出路径，也可以批量地将doc/docx/wps文件传给LibreOffice接口

libreoffice –headless –convert-to html –outdir /your/output/dir /your/doc_docx_wps/files/*.{dosx,doc,wps}

https://blog.csdn.net/weixin_45876766/article/details/118928482

https://github.com/unoconv/unoconv
About
Universal Office Converter - Convert between any document format supported by LibreOffice/OpenOffice.

https://github.com/wkhtmltopdf/wkhtmltopdf

Convert HTML to PDF using Webkit (QtWebKit)

https://github.com/LibreOffice/core
LibreOffice is an integrated office suite based on copyleft licenses and compatible with most document formats and standards. Libreoffice is backed by The Document Foundation, which represents a large independent community of enterprises, developers and other volunteers moved by the common goal of bringing to the market the best software for personal productivity. LibreOffice is open source, and free to download, use and distribute.

LibreOffice是OpenOffice.org办公套件衍生版， 同样自由开源，以Mozilla Public License V2.0分发源代码 [3] ，但相比OpenOffice增加了很多特色功能。LibreOffice拥有强大的数据导入和导出功能，能直接导入PDF文档、微软Word(.doc文件)、LotusWord，支持主要的OpenXML格式。软件本身并不局限于Debian和Ubuntu平台，现已支持Windows、Mac和其它Linux发行版等多个系统平台。

https://baike.baidu.com/item/LibreOffice/3862237?fr=aladdin

https://zh-cn.libreoffice.org/

https://github.com/shimohq/ioredis-tree