Methods and apparatus, including computer program products, for presenting
status of digital signatures. A digital document is received that defines
a presentation structure and includes a digital signature. The digital
document specifies a representation of the digital signature and a
location in the presentation structure for the representation of the
digital signature. A status is determined for the digital signature. A
status representation is associated with the digital signature, where the
status representation identifies the status determined for the digital
signature. Without altering the representation of the digital signature,
at least a portion of the digital document and the status representation
of the digital signature are presented in a user interface, where the
status representation is presented in the presentation structure at a
location that depends upon the location of the digital signature.