解密PDF
從PDF文件中刪除密碼。解鎖受密碼保護的文檔。
上傳 PDF 文件
關於此工具
解密PDF從PDF文檔中刪除密碼保護。輸入當前密碼以解鎖文件並創建不受保護的副本。
此工具要求您知道當前密碼。它無法破解或繞過未知密碼。
所有解密都在您的瀏覽器中進行，確保您的密碼和文檔保持隱私。
Practical guidance before you use 解密PDF
Best for real document workflows
Use 解密PDF when you need a quick browser-based result without creating an account or sending routine documents through an unnecessary upload workflow. 刪除舊密碼 is a common example: 當不再需要密碼時解鎖文檔。
Privacy and file handling
EasyPDFNex prioritizes local processing in your browser. That means supported PDF operations run on your device, not in a public cloud queue. For sensitive files, review the output before sharing it, close the browser tab after downloading, and avoid processing documents you are not authorized to edit.
Quality checks after processing
After you 解密並下載, open the result and check page order, text readability, signatures, links, and form fields. If the source file is scanned, encrypted, very large, or damaged, try a related workflow such as encrypt pdf, remove restrictions, change permissions before repeating the task.
Start with a clean source file whenever possible. For 解密PDF, the first step is usually "上傳受保護的PDF": 拖放您受密碼保護的PDF。 This simple preparation step prevents most failed exports, missing pages, and formatting surprises.
Editorial review note
This guidance is maintained by the EasyPDFNex editorial team and reviewed for practical PDF workflow accuracy. Tool pages are written to explain when a feature is useful, what to check before download, and where browser-based processing has limits.
使用方法
上傳受保護的PDF
拖放您受密碼保護的PDF。
輸入密碼
輸入當前文檔密碼。
解密並下載
點擊解密刪除保護並下載。
使用場景
刪除舊密碼
當不再需要密碼時解鎖文檔。
簡化訪問
創建不受保護的副本以便於共享。
存檔文檔
在長期存檔前刪除密碼。
常見問題
可以破解未知密碼嗎？
不能，您必須知道當前密碼才能解密。
原始文件會被修改嗎？
不會，會創建一個新的不受保護的副本。
如果忘記密碼怎麼辦？
很遺憾，我們無法恢復忘記的密碼。