kkFileView

ONLYOFFICE Docs is a free collaborative online office suite comprising viewers and editors for texts, spreadsheets and presentations, forms and PDF, fully compa

Open-source office suite pack that comprises all the tools you need to work with documents, spreadsheets, presentations, PDFs, and PDF forms on Windows, Linux,

本地自托管的PDF工具箱，合并拆分、转换、OCR、加水印等几十种操作全都有，不用上传文件到别人服务器，自己电脑或NAS上跑起来就能用。