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....文件中提取图像,例如 Java 中的 EPUB、PDF、FB2、CHM 。 数字签名 是用于验证文件真实性的可靠方案。数字签名通...