pdf - How do I trigger javascript events when a signature is cleared in Acrobat 11? -

in adobe acrobat standard xi (11), there way trigger javascript event when signature cleared?

there built-in interface performing actions when signature added, not when removed.

i want lock down fields when signature added, , auto-populate date field next signature. code working fine. problem is, when signature cleared, want unlock fields locked down, , remove date.

when using built-in "lock these fields" feature of signature actions, locks , unlocks fields when signature added , removed, cannot further customized populate date field well.

if comes down it, can ditch custom date code, want there way make work!

you may not have specific event "clear signature". however, can validate signature field using signaturevalidate() field object method. code sample , further information see acrobat javascript documentation.

you may have find suitable trigger action (autocalculate possible, documentation states running method time-consuming, , that's not want have in calculation events.