提前 PDF 加密是一個強大的工具，允許您加密現有的 PDF 檔，設定許可權，添加使用者和擁有者密碼，設定說明。借助「提前 PDF 加密」，您可以輕鬆設定擁有者密碼和列印、編輯和複製限制。您還可以透過設定使用者密碼來加密 PDF 文件，除了他知道正確的密碼之外，沒有人可以打開 PDF 文檔。使用"提前 PDF 加密"，您還可以批量編輯和修改 PDF 中繼資料，如 PDF 標題、主題、作者和關鍵字。
版本歷史記錄
- 版本 1.1.0 發佈於 2011-12-14
添加一些功能。 - 版本 1.0.0 發佈於 2011-03-01
提前 PDF 加密是一個強大的工具，允許您加密現有的 PDF 檔，設定許可權，添加使用者和擁有者密碼，設定說明。
軟體細節
終端使用者許可協定
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