Signature basicsAdded by IBM on October 10, 2012 | Version 1 (Original)
|Signatures are applied to forms as a security measure for both the provider and the user of the form. This topic contains introductory information and descriptions of the fields used to create signature buttons.
A typical signature button is created using the following options:
These options define the characteristics of the signature button in the following ways:
In addition to the options listed above, signature buttons also use a number of filters that determine which portions of the form are signed. These filters are created by adding a combination of filtering options to the button.
- type — Setting the type option to signature indicates that this is a signature button.
- value — The value option sets the text that the button displays. In general, you will display an instruction, such as "Click here to sign", or the signer's identity (typically the signer's name and e-mail address).
- format — Use format to make the signature mandatory, so that the user must sign the button before submitting the form.
- size — Use size to set the size of the button. We recommend that you set signature buttons to be at least 40 characters wide. This ensures that there is room to display the signer's name and e-mail address on the button.
- signformat — Use signformat to set which type of signature you want the button to create, such as Netscape, Microsoft™, ClickWrap, etc.,
- signature — The signature option sets the name of the signature item that will be created when the form is signed.
This page describes the signer option and signature item which are automatically created when a user clicks the signature button.
This section shows a pictorial description of what an end-user sees when a digital signature is required on a form.
This topic describes how to set the text displayed by a signature button, both prior to being clicked and after being clicked by the user. A compute can also be used to set the text displayed by a signature button.
You can make a signature mandatory on a form so that users cannot submit unsigned forms.
Forms are frequently signed by more than one person. This topic shows how it is possible to have multiple signatures on a form; where a secondary signature endorses the primary.
You can use a number of different signatures engines.
The following table lists all of the options that apply to digital signature buttons