（PDF安全性管理器）Lighten PDF Security Manager 1.1.0

用 Lighten PDF Security Manager，可以限制，或限制某些功能，如複製，列印或編輯通過加入開啟密碼訪問PDF檔案。

主要特點:

提供了兩種類型的密碼
你可以用下面的密碼加密的證券PDF文件：
文件開啟密碼（也稱為使用者密碼）
使用者必須輸入正確的密碼才能開啟PDF檔案。

權限密碼（也稱為主密碼）
收件人無需輸入密碼開啟和檢視文件。但是，如果他們想使用某些受限制的功能，例如複印，列印和更多的安全選項，必須輸入權限密碼。

靈活的許可選項
有各種可用的許可選取，如果你加入的權限密碼的PDF檔案。
印刷限制：您可以防止使用者列印PDF或容許使用者列印，但在低質量（不超過150 dpi的高）。

變更權限：
*插入，刪除和旋轉頁面
*填寫表單功能變數和簽名現有的簽名欄位
*註釋，填寫表單功能變數和簽名現有的簽名功能變數
*頁面佈局，填寫表單功能變數和簽名
*除了提取頁面
複製限制：啟用複製文字，圖像和其他內容

高效且易於使用的
*易於使用的，只有3個步驟來管理PDF安全設定
*與加密相同的安全在同一時間設定多個PDF檔案。例如，您可以加入100個PDF檔案，並設定權限密碼來限制複印和列印功能。

其他特點:
刪除密碼安全
除了增加安全設定，還可以，如果你有這樣做的權限刪除安全設定。如果您知道開啟密碼，輸入開啟密碼，那麼你可以從文件中刪除它。如果文件有權限密碼，您也可以直接刪除的權限。因此，管理PDF文件的安全性是不簡單的。

With Lighten PDF Security Manager, you can limit access to a PDF file by adding an open password, or by restricting certain features, such as copying, printing or editing.

Key Features

Two types of passwords are available
You can encrypt PDF document with following password securities:
Document Open Password (also known as a User password)
User must type in the correct password to open the PDF.

Permission password (also known as a master password)
Recipients don't need to enter password for opening and viewing the document. However, they must type the permission password if they want to use the certain restricted features, such as copying, printing and more security options.

Flexible Permission Options
There are various permission options available if you add permission password to a PDF file.
Printing Restrictions: You can prevent users from printing the PDF, or lets users print but in low quality (no higher than 150 dpi).

Changes Permissions:
* Inserting, Deleting, And Rotating Pages
* Filling In Form Fields And Signing Existing Signature Fields
* Commenting, Filling In Form Fields, And Signing Existing Signature Fields
* Page Layout, Filling In Form Fields, And Signing
* Any Except Extracting Pages
Copying Restrictions: Enable Copying Of Text, Images, And Other Content

Efficient and Easy-to-use
* Easy-to-use, only 3 steps to manage PDF security settings
* Encrypt multiple PDF files with the same security setting at one time. For example, you can add 100 PDF files, and set a permission password to limit the copying and printing features.

Other Features
Remove Password Security
Besides adding security setting, you can also remove security setting if you have the permission to do so. If you know the open password, enter the open password, then you can remove it from the document. If the document has a permissions password, you can also remove the permissions directly. So managing the security of a PDF document can not be easier.

Important: If you forget a password, you cannot recover it from the PDF. Consider keeping a backup copy of the PDF that isn’t password-protected.

（PDF安全性管理器）Lighten PDF Security Manager 1.1.0 / Homepage: www.lightenpdf.com