short update

i can confirm that this fails when exporting to PDF A/1a format

i tried FDF and PDF submit format

however, the following worked:

*the free TSA https://tsa.safecreative.org

*sign per usual CA cert


i then tried again to sign a non PDF A/1a with a timestamp server which
requires AUTH

that failed again, did not prompt for credentials, PDF generation failed






Fulano Diego Perez:
> Hi,
> 
> try these 2
> 
> https://www.comodo.com/home/email-security/free-email-certificate.php
> 
> https://www.startssl.com/?app=1
> 
> i use paid timestamp service
> 
> digistamp.com
> 
> would be good to hear your experiences
> 
> 
> 
> Richard:
>> Morning Diego,
>> I'm running 5.1.0.0.alpha1 but have 5.0.3.2-2 on another.
>> Point me to a link to create a certificate to sign with.
>> I've never tried to apply a timestamp to pdf.
>> Saludos.
>>
>> On Fri, Nov 27, 2015 at 1:45 AM, Fulano Diego Perez <
>> [email protected]> wrote:
>>
>>>
>>> Can anybody confirm the following work using:
>>>
>>> Writer Version: 1:5.0.3~rc2-1+b2
>>> debian stretch amd64
>>>
>>> *timestamp an ODF document exported to pdf where a http(s) timestamp
>>> server requires authentication?
>>>
>>> *ibid + sign the pdf with a commercial CA cert?
>>>
>>> *only sign a pdf with a commercial CA cert that does not produce a pdf
>>> altered after signing?
>>>
>>> please confirm how you did it........
>>>
>>>
>>>
>>>>
>>>>
>>>>
>>>> hello
>>>>
>>>> anybody had luck time stamping a PDF exported from libreoffice 5?
>>>>
>>>> i tried on debian/stretch 5.0.2-1 with no useful error output
>>>>
>>>> the export process doesn't prompt for TSA credentials
>>>>
>>>> then, signing just with a CA valid cert works, but opening the PDF in a
>>>> windows acrobat or reader shows a modification warning after signing
>>>>
>>>> does not seem thorough yet in the new libreoffice
>>>>
>>>
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