Abstract: An improved adhesive pattern for a mailer type business form intermediate having short and long strips of an adhesive provided offset from each other in removable margin strips on both surfaces of the form intermediate. The short and long adhesive strips alleviate side edge cupping of the removable margin strips, thereby substantially preventing edge crimping of the form intermediate against a retard surface when fed by a friction feeder. Additionally, an adhesive block is provided in each removable margin strip adjacent each of the sheet corners, thereby substantially preventing the corners of the form intermediate from being deflected significantly downward or upward.

Abstract: An improved adhesive pattern for a mailer type business form intermediate having short and long strips of an adhesive provided offset from each other in removable margin strips on both surfaces of the form intermediate. The short and long adhesive strips alleviate side edge cupping of the removable margin strips, thereby substantially preventing edge crimping of the form intermediate against a retard surface when fed by a friction feeder. Additionally, an adhesive block is provided in each removable margin strip adjacent each of the sheet corners, thereby substantially preventing the comers of the form intermediate from being deflected significantly downward or upward.

Abstract: A security document is provided including a unique combination of covert triggers, overt triggers, and overt secure document indicators arranged to enhance the security of the document at issue. In accordance with one embodiment of the present invention, a security document is provided including a security image and a covert trigger printed on a face of the document. The security image is defined by a collection of security image elements. The security image defines at least one document authentication scheme. The document authentication scheme is arranged to provide an indication of document authenticity. The covert trigger is defined by a collection of trigger elements. The trigger elements are arranged to resemble the security image elements so the covert trigger is not readily apparent on the face of the document. In accordance with another embodiment of the present invention, a method of authenticating a security document is provided.