PDF 加密 - 免費線上使用 | UtilsHub
線上免費使用 PDF 加密，無需下載安裝，即開即用。UtilsHub 提供數百款趣味線上工具。
Encrypt PDF
Set an open password and permissions. Everything runs locally — files are not uploaded.
Please choose a PDF file.
關於本工具
Encrypt PDF is a free online tool. Protect a PDF with an open password and permission restrictions.