Archived App
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
ShadowSign 影签是一款基于国产SM2密码算法的PDF文件应用工具，使用影签不但可以在手机上方便的实现对PDF文件的可靠SM2电子签名，而且可以查验文件中已经包含的SM2标准和RSA标准的签名信息
What's New in ShadowSign
5.1
January 25, 2022
增加创建文字功能，优化pdf渲染
