如何在Node.js中填写PDF表单字段

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-fill-pdf-form/license-setup.js
const { IronPdfGlobalConfig } = require("@ironsoftware/ironpdf");

// Apply once at startup -- before any PdfDocument operations
IronPdfGlobalConfig.getConfig().licenseKey = process.env.IRONPDF_LICENSE_KEY;

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-fill-pdf-form/fill-pdf-form.js
const { PdfDocument, IronPdfGlobalConfig } = require("@ironsoftware/ironpdf");

IronPdfGlobalConfig.getConfig().licenseKey = process.env.IRONPDF_LICENSE_KEY;

async function fillApplicationForm() {
    // Load the PDF containing form fields
    const pdf = await PdfDocument.fromFile("./forms/application-form.pdf");

    // Discover available field names before filling
    const fieldNames = await pdf.getFormFieldNames();
    console.log("Form fields:", fieldNames);

    // Text fields
    await pdf.setFormFieldValue("firstName", "Jane");
    await pdf.setFormFieldValue("lastName", "Doe");
    await pdf.setFormFieldValue("email", "jane.doe@example.com");
    await pdf.setFormFieldValue("phone", "+1-555-987-6543");

    // Date field
    await pdf.setFormFieldValue("dateOfBirth", "03/22/1988");

    // 复选框 fields -- pass "true" or "false" as strings
    await pdf.setFormFieldValue("agreeToTerms", "true");
    await pdf.setFormFieldValue("subscribeNewsletter", "false");

    // Dropdown / select field
    await pdf.setFormFieldValue("country", "United States");

    // Multi-line text area
    await pdf.setFormFieldValue("comments", "Application submitted via automated workflow.");

    // Flatten the form to lock values -- prevents further editing
    // await pdf.flattenAllFormFields();

    await pdf.saveAs("./output/filled-application.pdf");
    console.log("Form saved.");
}

fillApplicationForm().catch(console.error);

//:path=/static-assets/pdf/content-code-examples/nodejs/how-to/nodejs-fill-pdf-form/field-types.js
const { PdfDocument, IronPdfGlobalConfig } = require("@ironsoftware/ironpdf");

IronPdfGlobalConfig.getConfig().licenseKey = process.env.IRONPDF_LICENSE_KEY;

async function handleFieldTypes() {
    const pdf = await PdfDocument.fromFile("./forms/complex-form.pdf");

    // Radio button -- use the field's export value, not its display label
    await pdf.setFormFieldValue("gender", "Female");

    // 复选框
    await pdf.setFormFieldValue("termsAccepted", "true");

    // Dropdown
    await pdf.setFormFieldValue("preferredContact", "Email");

    // Numeric field -- pass the number as a string
    await pdf.setFormFieldValue("invoiceAmount", "1250.00");

    // Date picker
    await pdf.setFormFieldValue("appointmentDate", "2024-06-15");

    await pdf.saveAs("./output/complex-form-filled.pdf");
}

handleFieldTypes().catch(console.error);