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Full guide: How to Programmatically Fill a PDF Form in Java
Filling out PDF forms can be automated beyond manual data entry. Such automation is particularly useful when designing user interfaces that require systematic archiving of electronic PDF forms.
After gathering required data from user inputs, a scenario such as a library system may necessitate the automated creation of PDF forms. These forms can be stored for later use or further manipulation. Various Java libraries including PDFBox, iText7, and IronPDF facilitate such operations. This guide will illustrate how to effectively utilize IronPDF for this purpose.
IronPDF provides a Java library designed for PDF creation and manipulation, enabling developers to craft, edit, and manage PDF documents within Java applications. This library is compatible with all Java projects, integrating.
IronPDF features comprehensive functionality such as text and image editing, document securitization, and digital signatures. This makes it an invaluable resource for producing high-quality PDF documents in Java applications.
Let's explore the process of filling PDF forms programmatically using IronPDF’s Java library.
Implement IronPDF in your Java projects through Maven by following these instructions:
- Open your project's pom.xml.
- Insert the dependencies listed below within the <dependencies> section.
- Save changes to pom.xml and execute mvn install to install IronPDF Java via Sonatype Central Repository Page for IronPDF.
Now, IronPDF is ready to be used in your Java applications.
Here’s a practical example of programmatically filling a PDF form using IronPDF and HTML markup:
import com.ironsoftware.ironpdf.PdfDocument;
import com.ironsoftware.ironpdf.render.ChromePdfRenderOptions;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
public class Application {
public static void main(String[] args) throws IOException {
Path outputPath = Paths.get("output/EditedForm.pdf");
String htmlForm = "<html>" +
"<body>" +
"<h2>Custom PDF Form</h2>" +
"<form>" +
"First Name: <br> <input type='text' name='firstName' value=''> <br>" +
"Last Name: <br> <input type='text' name='lastName' value=''>" +
"</form>" +
"</body>" +
"</html>";
ChromePdfRenderOptions options = new ChromePdfRenderOptions();
options.setCreatePdfFormsFromHtml(true);
PdfDocument pdf = PdfDocument.renderHtmlAsPdf(htmlForm, options);
pdf.saveAs(outputPath);
// Access and fill the PDF form
PdfDocument loadedPdf = PdfDocument.fromFile(outputPath);
loadedPdf.getForm().setFieldValue("firstName", "Mickey");
loadedPdf.getForm().setFieldValue("lastName", "Mouse");
loadedPdf.saveAs(Paths.get("output/FilledForm.pdf"));
}
}In this code, the initial segment generates a new PDF by rendering HTML content into a form with editable fields. The second segment loads this newly created PDF, fills in the predefined fields programmatically, and saves the updated document.
Initially, IronPDF crafts a PDF with editable text fields as shown:
Following the field updates, here’s the filled form:
IronPDF proves to be a dependable and efficient Java library for handling PDF documents, particularly useful for automating form filling processes. The library’s ease of integration and comprehensive capabilities make it a top choice, supported by both a free trial and competitive licensing options. This makes IronPDF a practical option for both individual developers and businesses.