Insert trusted timestamp to PDF

[Hegedüs,]

Hello Everyone,

I'm looking for a tool, which can add a trusted timestamp to an
existing PDF file (and can sign - but currently only have to add
TS).

Could anybody help?


Thanks:


a.

[Irmen de Jong]

On 07-12-11 20:41, Hegedüs, Ervin wrote:
> Hello Everyone,
>
> I'm looking for a tool, which can add a trusted timestamp to an
> existing PDF file (and can sign - but currently only have to add
> TS).

Note sure what a 'trusted timestamp' is, but pdftk can manipulate pdf
files. See http://www.pdflabs.com/docs/pdftk-man-page/
(nothing to do with Python btw!)

Irmen

[Matteo Boscolo]

have a look at:
http://www.boscolini.eu/Boscolini/index.php?option=com_content&view=article&id=64%3Anumbering-pdf-file-in-python&catid=38%3Aprogramming&Itemid=55&lang=en
<http://www.boscolini.eu/Boscolini/index.php?option=com_content&view=article&id=64%3Anumbering-pdf-file-in-python&catid=38%3Aprogramming&Itemid=55&lang=en>
here I number some pdf files ..

regards,
Matteo

Il 07/12/2011 20:41, Hegedüs, Ervin ha scritto:
> Hello Everyone,
>
> I'm looking for a tool, which can add a trusted timestamp to an
> existing PDF file (and can sign - but currently only have to add
> TS).
>

[Hegedüs,]

Hello Irmen,

On Wed, Dec 07, 2011 at 08:59:11PM +0100, Irmen de Jong wrote:
> On 07-12-11 20:41, Hegedüs, Ervin wrote:
> >Hello Everyone,
> >
> >I'm looking for a tool, which can add a trusted timestamp to an
> >existing PDF file (and can sign - but currently only have to add
> >TS).
>
> Note sure what a 'trusted timestamp' is,

that's very important to understand what does it mean -
otherwise it's just groping :)

http://tools.ietf.org/html/rfc3161
http://en.wikipedia.org/wiki/Trusted_timestamp

> but pdftk can manipulate
> pdf files. See http://www.pdflabs.com/docs/pdftk-man-page/
> (nothing to do with Python btw!)

looks like it couldn't, but I'll contact them.


thanks:


a.

[Alec Taylor]

Just digitally sign the document using python-gnupg

/problem-solved!

On Thu, Dec 8, 2011 at 4:09 PM, Hegedüs, <air...@gmail.com> wrote:
> Hello Irmen,
>
> On Wed, Dec 07, 2011 at 08:59:11PM +0100, Irmen de Jong wrote:

>> On 07-12-11 20:41, Hegedüs, Ervin wrote:
>> >Hello Everyone,
>> >
>> >I'm looking for a tool, which can add a trusted timestamp to an
>> >existing PDF file (and can sign - but currently only have to add
>> >TS).
>>
>> Note sure what a 'trusted timestamp' is,

> that's very important to understand what does it mean -
> otherwise it's just groping :)
>
> http://tools.ietf.org/html/rfc3161
> http://en.wikipedia.org/wiki/Trusted_timestamp
>

>> but pdftk can manipulate
>> pdf files. See http://www.pdflabs.com/docs/pdftk-man-page/
>> (nothing to do with Python btw!)
>

> looks like it couldn't, but I'll contact them.
>
>
> thanks:
>
>
> a.
>

> --
> http://mail.python.org/mailman/listinfo/python-list

[Hegedüs,]

Hello,

On Thu, Dec 08, 2011 at 04:28:01PM +1100, Alec Taylor wrote:
> Just digitally sign the document using python-gnupg
>
> /problem-solved!

using gnupg to sign a document != add a timestamp to a pdf.

May be this doc helps to clear what's the different, and what I want:

http://learn.adobe.com/wiki/download/attachments/52658564/digital_signatures_in_acrobat_9x.pdf?version=1



thanks:


a.

[marco...@gmail.com]

Hi, take a look at this online tool: http://easytimestamping.com

It is able to apply RFC3161 compliant trusted timestamps, issued by accredited Certification Authorities.

The timestamp is applied to the pdf in detached mode (i.e. as a separate .tsr file)

If you need to integrate the timestamping process in a python app, be patient, we will release an API and a command line version very soon.

--
Marco Rucci
securo.it

[marco...@gmail.com]

[Alec Taylor]

Or the python implementation of that RFC:
http://pypi.python.org/pypi/rfc3161/0.1.3

> --
> http://mail.python.org/mailman/listinfo/python-list

[Hegedüs,]

hello,

On Wed, Dec 07, 2011 at 11:39:20PM -0800, marco...@gmail.com wrote:
> Hi, take a look at this online tool: http://easytimestamping.com

I need to create the PDF on my server - it could be any online
service, but it must to have any kind of API.

> It is able to apply RFC3161 compliant trusted timestamps, issued by accredited Certification Authorities.

that's no problem in Python... :)

http://pypi.python.org/pypi/rfc3161/

> The timestamp is applied to the pdf in detached mode (i.e. as a separate .tsr file)

I'm afraid that's not good for us - we need to propagate PDF
files in enbedded mode.

> If you need to integrate the timestamping process in a python app, be patient, we will release an API and a command line version very soon.

sounds good - what do you think, when will you release that
about?


Thanks:


a.

[marco...@gmail.com]

On Thursday, December 8, 2011 8:59:31 AM UTC+1, Hegedüs, Ervin wrote:
> > The timestamp is applied to the pdf in detached mode (i.e. as a separate .tsr file)
>
> I'm afraid that's not good for us - we need to propagate PDF
> files in enbedded mode.

I'll do some research and let you know if it is feasible. Anyway, it should be possible to embed it later.

> > If you need to integrate the timestamping process in a python app, be patient, we will release an API and a command line version very soon.
>
> sounds good - what do you think, when will you release that
> about?

The API is basically ready. We are only missing the authentication method. In less then a couple weeks it should be complete.

If you want, I can give you access to a beta version of the API, so you can start integrating the service with your application and then add the required authentication process. Can I contact you privately by email?

Thanks for your interest,

Marco.

[marco...@gmail.com]

On Thursday, December 8, 2011 8:59:31 AM UTC+1, Hegedüs, Ervin wrote:

> > The timestamp is applied to the pdf in detached mode (i.e. as a separate .tsr file)
>
> I'm afraid that's not good for us - we need to propagate PDF
> files in enbedded mode.

I'll do some research and let you know if it is feasible. Anyway, it should be possible to embed it later.

> > If you need to integrate the timestamping process in a python app, be patient, we will release an API and a command line version very soon.
>
> sounds good - what do you think, when will you release that
> about?