Haihaisoft PDF Reader是目前小編用過的最好的一款免費pdf閱讀器，Haihaisoft PDF Reader 真正完全免費，無廣告插件，小巧免安裝，執行速度快，佔用資源小，能夠輕鬆的開啟任何一個pdf檔案，並支援對其進行放大縮小，單頁/雙頁/書籍檢視查看，支持全螢幕，幻燈片查看等，Haihaisoft PDF Reader 海海pdf閱讀器是用戶閱讀pdf檔案的最好幫手。
Haihaisoft Reader is a free PDF document Reader and Printer, extremely fast launch speed and rich feature set. It is also for reading PDF document protected by DRM-X platform. It is now available for Windows, Mac, Android, and iPhone/iPad.
Support multiple languages: English, Arabic, Afrikaans, Basque, Belarusian, Bengali, Bulgarian, Catalan, Simplified Chinese, Traditional Chinese, Croatian, Danish, Dutch, Finnish, French, Galician, German, Greek, Hebrew, Hungarian, Indonesian, Irish, Italian, Japanese, Korean, Lithuanian, Macedonian, Malay, Norwegian English, Polish, Portuguese, Russian, Slovak, Spanish, Swedish, Turkish, Ukrainian, Vietnamese, Welsh and other languages.