Help:Security/PDF files/zh

PDF檔案格式發現了特定的安全與隱私問題，因此您在打開這類檔案時可能要特別留意. PDF檔案可包含複雜的互動特性，其特性能觸發PDF閱讀軟體連結到網際網路，並向第三方顯示IP位址與其他個人資料. A malicious PDF author might use this functionality to connect network locations to wiki usernames or otherwise violate the privacy of the reader.

PDF has a complex internal structure which makes practically impossible to detect dangerous files; it is left to the privacy-conscious reader to take precautions. Whether a PDF file is able to expose private information depends on your choice of PDF reader software. In general, PDF readers with less functionality are safer; the native PDF readers built into the Firefox and Chrome web browsers are the safest choice. Adobe Acrobat, with its default settings, is NOT safe.

Useful links:
 * Adobe documentation about security settings
 * Aniello Castiglionea, Alfredo De Santis, Claudio Sorientea: Security and privacy issues in the Portable Document Format