Choose Tools > Protect > Encrypt > Encrypt with Certificate not showing

in my pdf file Encrypt with Certificate not showing .

by using certificates i want set a passwords more than 3 is it possible using certificate security can tell me please...

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이 주제는 답변이 닫혔습니다.

Legend

Reader cannot add security.

Community Expert

What can you see under Tools > Protect > Encrypt?

Known Participant

protection > security properties only

Known Participant

Acrobat Reader or Adobe Acrobat?

i am using Acrobat Reader.

i have another question this Acrobat Reader can support certificate signature security or not can tell me iam confused about signature .. thanku

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