[nSLUG] Timstamping a document

Gerald Ruderman linux at zdoit.airpost.net
Thu Oct 3 19:21:01 ADT 2013


Richard,

Which is why I am looking for something that can not be changed
violating some sort of cryptograhpic security.

Gerald

On 10/3/13 5:30 PM, Richard Bonner wrote:
> 
> On Thu, 3 Oct 2013, Gerald Ruderman wrote:
> 
>> I am trying to timestamp a PDF to prove it existed at a certain time.
> (Snip)
> 
> ***   Since timestamps can be changed, a file's date and time are not
> proof of its actual creation date.
> 
>  Richard
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