Validity Layer set for validity symbol

[Urmi Vijayvargiy <ur...@cygnetinfotech.com>]

Hello PDFBOX team,

We are digital signing pdf and want to add validity symbol layer (green tick) but it should only be visible on pdf reader and not on any browser screen.
We achieved same using itextsharp by manipulating n1,n3 and n4 layer- attached is reference code. same we want to achieve using pdfbox and java.
Any update on this will be helpful.


Thanks and Regards,
Urmi Vijayvargiy

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Re: Validity Layer set for validity symbol

[Tilman Hausherr <TH...@t-online.de>]

This green tick thing is not standard and shouldn't be used because it 
can be faked. It is outdated. The only thing to use to verify signatures 
is the signature window in Adobe.

Tilman

Am 02.07.2020 um 07:47 schrieb Urmi Vijayvargiy:
>
> Hello PDFBOX team,
>
> We are digital signing pdf and want to add validity symbol layer 
> (green tick) but it should only be visible on pdf reader and not on 
> any browser screen.
>
> We achieved same using itextsharp by manipulating n1,n3 and n4 layer- 
> attached is reference code. same we want to achieve using pdfbox and java.
>
> Any update on this will be helpful.
>
> Thanks and Regards,
>
> Urmi Vijayvargiy
>
> Disclaimer: The information contained in this message and attachment 
> may be CONFIDENTIAL and is for the intended addressee only. Any 
> unauthorized use, dissemination of the information, or copying of this 
> message is prohibited and may be unlawful. If you are not the intended 
> addressee, please notify the sender immediately and delete this 
> message. Cygnet Infotech Private Limited or its Subsidiary does not 
> accept any liability for any errors, loss, delayed delivery, 
> tampering, corruption or presence of viruses in this message or any 
> attachment.
>
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