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Extract data from PDF form fields in React Native

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Nutrient React Native SDK allows you to extract data from form fields programmatically. Each form field has a fully qualified name, which is used to identify and retrieve a specific form field object before extracting its data.

Getting the fully qualified name of a form field

The example below shows how to obtain the fully qualified name of the first form field of a document:

const formElements = await this.pdfRef.current?.getDocument().forms.getFormElements();
const firstFormFieldName = formElements[0].fullyQualifiedFieldName;

The getFormElements method returns an array of FormElement objects. See the API reference for a list of available objects.

Getting the data from a form field

The example below shows how to get the value of a form field with a fullyQualifiedFieldName of Last_Name:

const formElements = await this.pdfRef.current
  ?.getDocument()
  .forms.getFormElements();
const formElement = formElements?.find(
  (element) => element.fullyQualifiedFieldName === 'Last_Name',
);
const lastName = formElement?.formField?.value;