signature validation

WeatherSig displays your city weather conditions in your email signature

Allows you to verify the digital signature of the active document.

Turn your signature, first name, and even your initials into a scalable TrueType

Digital signature solution for enterprise, sign any computer file by persons

Mailer Signature is a plugin for Winamp which adds name of currently playing ...

Check the validity of master data.

Verifies that the request for a page (containing the script) was made from page

Checks that postcodes are in correct format. Is written for UK format

In forms when asking for date fields it is a good idea to validate

It is validates the entered value to see if it conforms to the ICD-10 format