Download Old Versions of Sumatra PDF for Windows

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SumatraPDF 是一款適用於Windows 的多格式（PDF、EPUB、MOBI、CBZ、CBR、FB2、CHM、XPS、DjVu）閱讀器，採用 (A)GPLv3 許可證，部分代碼採用BSD 許可證。

Sumatra PDF is a free PDF, eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader for Windows. The software is powerful, small, portable and starts up very fast.

A new version of Sumatra PDF Legacy Portable has been released. It's the lightweight Sumatra PDF viewer packaged as a portable app, so you can view PDFs, ebooks, DjVu files and comics on the go.

System requirements Supported OS: Windows 11, Windows 10, Windows 8, Windows 7, Vista. For XP use version 3.1.2 .

SumatraPDF 免費 PDF 閱讀器，可查看PDF, EPUB, MOBI, CHM, XPS, DjVu, CBZ 和 CBR格式的文件，可以將頁面文字高光標記重點、加入文字、添加印章等簡單的功能，以下提供官方的載點，支援繁體中文免安裝版。