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New in version: 6.4 6.5 7.0 7.1 7.2 7.3 7.4 7.5 8.0 8.1 Statistic
Creates an empty signature field which can be used to digitally sign the PDF file.
|Component||Version||macOS||Windows||Server||FileMaker Cloud||FileMaker iOS SDK|
|The PDF reference returned from DynaPDF.New.|
|Name||Name of the field||"IsMale"|
|ExpValue||Export value (required)||"IsMale"|
|Checked||If 1, the check box appears checked. Else pass 0 for unchecked.||0|
|Parent||Parent group field if any or -1.||-1|
|PosX||X-Coordinate of the text field.||100|
|PosY||Y-Coordinate of the text field.||100|
|Width||Width of the text field.||100|
|Height||Height of the text field.||20|
Returns handle or error message.
DescriptionCreates an empty signature field which can be used to digitally sign the PDF file.
If the coordinate system is bottom-up the point PosX, PosY defines the lower left corner of the signature field. If the coordinate system is top-down it defines the upper left corner.
Like all form fields, the width and height is measured incl. the line width of the border. The size of normal vector graphics is measured without the line width; this must be taken into account when calculating the width or height of a form field. The line width of the border is derived from the current graphics state (see DynaPDF.SetLineWidth), it should be either 0, 1, 2, or 3 units (no border, thin, medium, or thick). The border style can be changed with the functions DynaPDF.SetBorderStyle or DynaPDF.SetFieldBorderStyle.
If the PDF file should be digitally signed by DynaPDF call the function DynaPDF.CloseAndSignFile or DynaPDF.CloseAndSignFileEx after all pages has been created. The first signature field is used for signing if multiple signature fields exist. In this case it is also possible to create a user defined appearance for the signature field. See CreateSigFieldAP() for further information.
A signature field can be visible or invisible depending on your requirements. To create a hidden signature field set the flag ffHidden to the field (see also DynaPDF.SetFieldFlags).
How to lock an Interactive Form after signing?
The function supports two parameters, the first parameter defines whether all or only specific fields should be locked, the second parameter contains either an empty array or an array of full qualified field names delimited by a comma:
- AFSignature_Format("ALL", new Array ("")");
- AFSignature_Format("THESE", new Array ("Field1, Field2")");
- AFSignature_Format("EXCEPT", new Array ("Field1, Field2")");
If a form contains a button with a Submit Form Action then it is recommended to exclude the button field from locking so that it is still possible to submit the form data. Otherwise, the entire form is locked, incl. the submit button, and it is impossible to submit the form data to a web server.
See also CreateSigField function in DynaPDF manual.
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