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Anonymous
September 6, 2017
Question

Certificate validity of the document is unknown, authors cannot be verified what the problem is?

  • September 6, 2017
  • 1 reply
  • 710 views

, 文档证书有效性未知，无法验证作者是什么问题？用U盾签名时签不了，显示无法验证文档验证身份，怎么处理。

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1 reply

Adorobat
Community Manager
AdorobatCommunity Manager
Community Manager
September 14, 2017

Hi 碧君陈,

Sorry for the delayed response.

As I was able to understand the issue from the description mentioned above, you are getting "validity of the digital signature is displayed as "UNKNOWN" message, is this correct?

Please refer to the following links which discuss this topic:

Validity of digital signature is displayed as Unknown in Reader or Acrobat

Why is the validity of my digitally signed document displayed as unknown?

Signature valid or invalid

Thanks,

Shivam

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