ARender new version is able to validate PDF digital signatures. Thus, it truly identify the PDF signer and ensure the document integrity.
A new tab
ARender new version adds a tab to the interface when a signed PDF is loaded. This tab is dedicated to the signature.
Two icons have been created:
- Validated signature :
- Signature problem :
Nominal case : a validated signature
If a PDF well signed is loaded into ARender, a new tab, dedicated to the PDF signature, appears.
The signature is shown as valid when is tab icon is checked (green icon).
A click on it open the tab like below:
On this tab, we can see the following signature information:
- The signer,
- The PDF Integrity which is preserved or not,
- The validation of the certificate chain (Signature valid or not),
- The signature date,
- The signature reason,
- And the signature location.
When the integrity is not preserved
It is possible to have a PDF which has been modify after the signature affixing. At this moment, the integrity is not preserved.
Here is how ARender will show you this information:
We can see that the title color has been modified. ARender alerts the user using the icon with a red cross, and with the information below it.
When the signature is not recognized
The PDF can be signed with a non-recognized signature. It means that the signer can’t be validated neither than the document integrity. ARender alerts the user using the icon with a red cross.
And with the information shown below it:
In order to see the expected behavior, watch this video :