Understood. That was the intent of my original question: I don't see an API or
example of how to request a time-stamp from a "time stamp server" (don't
exactly know what that is -- is it a Stratum 1 or 2 NTP server? is it
something else?), and I don't see a method to set that time-stamp on the
signature.
I see a setSignDate(), but that just takes a Calendar object, and I don't know
how that would identify itself as some special/official time stamp.
Thanks for the reply.
----- Original Message -----
From: Leonard Rosenthol
To: AJ Weber
Sent: Wednesday, June 29, 2011 11:29 AM
Subject: Re: [iText-questions] signing question re date/time
It means that you didn't involve a time-stamp server and so the time is based
on your computer's time.
This is sort of in the same boat as getting a real certificate – you can sign
for yourself or you can sign for the real world.
Leonard
From: AJ Weber <[email protected]>
Reply-To: AJ Weber <[email protected]>
Date: Wed, 29 Jun 2011 07:18:30 -0700
To: Leonard Rosenthol <[email protected]>
Subject: Re: [iText-questions] signing question re date/time
Here's my test document.
----- Original Message -----
From: Leonard Rosenthol
To: AJ Weber ; Post here
Sent: Wednesday, June 29, 2011 10:14 AM
Subject: Re: [iText-questions] signing question re date/time
Can't tell you w/o seeing an actual PDF that demonstrates the problem.
From: AJ Weber <[email protected]>
Reply-To: AJ Weber <[email protected]>
Date: Wed, 29 Jun 2011 07:04:10 -0700
To: Leonard Rosenthol <[email protected]>, Post here
<[email protected]>
Subject: Re: [iText-questions] signing question re date/time
Are you saying it's a bug in Acrobat 8? Unfortunately, I can't control the
viewing application (or version) that users choose to open the signed PDF with,
so if there's a universally applicable way to get an appropriate timestamp and
apply it to the signature, I think I should pursue that, right?
----- Original Message -----
From: Leonard Rosenthol
To: AJ Weber ; Post here
Sent: Wednesday, June 29, 2011 9:52 AM
Subject: Re: [iText-questions] signing question re date/time
Have you tried Acrobat 9 or X?
From: AJ Weber <[email protected]>
Reply-To: AJ Weber <[email protected]>, Post here
<[email protected]>
Date: Wed, 29 Jun 2011 06:39:04 -0700
To: Post here <[email protected]>
Subject: [iText-questions] signing question re date/time
I'm testing some PDF signing using some of the sample code from the
latest "iText In Action" book (slightly modified 12.14 code, to be moderately
specific).
When I look at the generated signature properties with Acrobat 8, there
is a warning "Signature date/time are from the clock on the signer's computer."
Is there some additional method-call I can use to get the date/time from
an appropriate source to suppress this warning?
NOTE: I'm testing with a self-signed cert at this time; maybe this is
"automatic" for CA-issued certs.
Thanks in advance,
AJ
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