{"id":10286,"date":"2026-01-10T14:20:27","date_gmt":"2026-01-10T06:20:27","guid":{"rendered":"https:\/\/blog.visual-paradigm.com\/tw\/how-to-protect-a-pdf-with-a-password\/"},"modified":"2026-01-10T14:20:27","modified_gmt":"2026-01-10T06:20:27","slug":"how-to-protect-a-pdf-with-a-password","status":"publish","type":"post","link":"https:\/\/blog.visual-paradigm.com\/tw\/how-to-add-a-password-to-pdf-online","title":{"rendered":"\u5982\u4f55\u5728\u7dda\u70baPDF\u6dfb\u52a0\u5bc6\u78bc"},"content":{"rendered":"<p><img alt=\"\" class=\"alignnone wp-image-13227\" decoding=\"async\" height=\"240\" loading=\"lazy\" sizes=\"auto, (max-width: 358px) 100vw, 358px\" src=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/pdf-protected-password-1.png\" srcset=\"https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/pdf-protected-password-1.png 480w, https:\/\/blog.visual-paradigm.com\/wp-content\/uploads\/2022\/10\/pdf-protected-password-1-300x201.png 300w, 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