what i should to do to customize my PDF signature using PubSec?

[NoSmoking@adobeforums.com]

I want to develop a customized signature plug-in.I saw the example-DocSign.But I want to call the signature method by my tool/button/menu etc,not from the signature button of the Acrobat's.

When user click my signature button , i will ask the user to select the certificate,appearance and any other user could decide by themselves,after that if user left click the page view will add a signature.

I think that on the user left click event should start PSSessionAcquireProc calling.But this proc is called by Acrobat.

What should i do to accomplish this?

Thanks in advance, especially for Leonard for your patience. :)
Thanks!

[Leonard_Rosenthol@adobeforums.com]

If you wish to use a procedure OTHER than the standard set of operations that Acrobat's signing does - you will need to re-implement the entire process yourself. You are welcome to do so - we have some partners that do this - though it's certainly not a trivial amount of work.

[NoSmoking@adobeforums.com]

Leonard：
I think I should use DigSig other than PubSec,is it right?
The DigSig can be called on the user demand and can set the signature RECT.
So i think it's suitable to use DigSig for my purpose,right?