pdf 电子签章

 

  pdf 电子签章

借鉴 ：  https://www.cnblogs.com/wolf-shuai/p/14487595.html

 

https://blog.csdn.net/weixin_44385486/article/details/127495462

 

https://github.com/intoolswetrust/jsignpdf/tree/master

 

https://github.com/SpringForAll/spring-cloud-digital-sign

https://franchi-rafael.medium.com/digital-signature-pkcs7-with-itext-2-1-7-part-1-ffc7e1f7b264

科普

https://try8.cn/tool/cipher/rsa

https://www.ssleye.com/ssltool/cer_check.html

https://www.trustauth.cn/SSLTool/tool/create_csr.jsp

https://www.cnblogs.com/librarookie/p/16330406.html

https://www.cnblogs.com/liaomin416100569/p/9331204.html

https://www.cnblogs.com/werr370/p/14678983.html

https://blog.csdn.net/swadian2008/article/details/130177577

 

https://blog.csdn.net/u011580177/article/details/106222865/