How to add signature fields to PDFs on Android
A form field is a model representation of a visual form element in a document. To enable form field creation, Nutrient exposes a handy set of configuration builders that make the entire process smooth. For more information on the difference between a form field and a form element, see our introduction to forms guide.
The minimum amount of information required for the creation of a signature form configuration is the page index and the annotation bounding box that will contain the signature form element. Once built, it can be added to a document using FormProvider#addFormElementToPage:
val page = 0val rectFSignatureFormConfiguration = RectF( 30f, // left 190f, // top 200f, // right 160f // bottom)val signatureFormConfiguration = SignatureFormConfiguration.Builder(page, rectFSignatureFormConfiguration) .build()val signatureFormField = document.formProvider.addFormElementToPage("signaturefield-1", signatureFormConfiguration)int page = 0;RectF rectFSignatureFormConfiguration = new RectF( 30, // left 190, // top 200, // right 160 // bottom);SignatureFormConfiguration signatureFormConfiguration = new SignatureFormConfiguration.Builder(page, rectFSignatureFormConfiguration) .build();SignatureFormField signatureFormField = getDocument().getFormProvider().addFormElementToPage("signaturefield-1", signatureFormConfiguration);You can add any kind of form field to a document, apart from signature form fields. Check out the Android documentation for more info about the Forms API.