Document Automation APIs along with open-source SDKs to enhance Java, Python, Node.js, C# .NET, Ruby, C++, and PHP applications to view, edit, annotate, convert, compare, e-sign, parse, split, merge, extract, redact, watermark, metadata, paraphrase, classify, repair, and translate documents of almost all the popular file formats....使用盖章签名安全地签署官方文件 在 PDF、Word、Excel 和 PowerPoint 文档上添加文本、图像或图章签名。 [ ](https://blog...GroupDocs.Annotation for .NET 17.7 支持设置 PDF、Word、PowerPoint 和图表文件...