When I append a second signature, the first is invalidated, even though form filling and signing is allowed.
There is also an anomaly with the certification details: "Certified by %s"
See attached screenshot
Screenshot of Adobe Reader showing validation problem
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Also noticed this same issue reported in the forums:
Apologies, according to this forum thread, it seems this isn't a bug per se
so I dropped the priority
For reference, to avoid the issue covered here, ensure:
First signature = "Form filling allowed"
Subsequent signature(s) = "Not certified"
Would it be possible to override the certification level if it is detected there is already a certification signature in the file?