Document Automation APIs to enrich .NET and Java applications to view, edit, annotate, convert, compare, e-sign, parse, split, merge, redact, or classify documents of almost all the popular file formats....我們已經學會了鎖定和解鎖 PDF 和 PowerPoint 文件。在本文中,我們將了解如何使用 C# 密碼保護...