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Convert XFA Form to PDF using Java REST API

This short tutorial guides on how to convert XFA Form to PDF using Java REST API. You will learn to convert dynamic XFA to PDF using Java REST Interface with the help of a Java-based Cloud SDK. It shares the steps defining the process of changing XML Forms Architecture to traditional PDF form, a sample code and a description of the code.

Prerequisite

Steps to Convert XFA to PDF using Java RESTful Service

  1. Instantiate the PdfApi class object by setting the client secret and ID for changing XFA to PDF
  2. Set the XFA Form PDF file name
  3. Read all the bytes in the XFA Form file into a byte array
  4. Create a memory stream from XFA contents in the byte array
  5. Upload the XFA file in the memory stream to the Cloud storage
  6. Invoke the GetXfaPdfInStorageToAcroForm() method to change the XFA file to PDF
  7. Parse the response object and save the normal PDF exported from XFA to the disk

These steps summarize the process of transforming the XFA Form to PDF using Java Low Code API. Commence the process by loading the source XFA file into a MemoryStream and uploading it to the Cloud storage. Finally, call the GetXfaPdfInStorageToAcroForm() method to transform the uploaded XFA file to a normal PDF with embedded Form.

Code to Convert XFA PDF to Normal PDF using Java RESTful Service

import com.aspose.pdf.cloud.sdk.ApiException;
import com.aspose.pdf.cloud.sdk.Configuration;
import com.aspose.pdf.cloud.sdk.api.PdfApi;
import com.aspose.pdf.cloud.sdk.model.FileResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class PdfTasks {
public static void convertXfaToPdf() {
// Initialize API with credentials
String appKey = "Client secret";
String appSid = "Client ID";
// Set configuration
Configuration configuration = new Configuration(appSid, appKey);
PdfApi pdfApi = new PdfApi(configuration);
String documentName = "PdfWithXfaForm.pdf";
try {
// Upload the PDF file
FileInputStream fileStream = new FileInputStream(new File(documentName));
pdfApi.uploadFile(documentName, fileStream);
// Convert XFA to AcroForm
FileResponse response = pdfApi.getXfaPdfInStorageToAcroForm(documentName);
// Save the converted PDF to local storage
FileOutputStream fileOutputStream = new FileOutputStream("output.pdf");
response.getFileContent().writeTo(fileOutputStream);
fileOutputStream.close();
System.out.println("XFA converted to AcroForm PDF successfully!");
} catch (IOException | ApiException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
convertXfaToPdf();
}
}
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This code has demonstrated the process to convert dynamic XFA PDF to PDF using Java Low Code API. The dynamic forms that can expand, shrink, or change based on input are transformed into Forms that are static where layout and fields do not change dynamically using the GetXfaPdfInStorageToAcroForm() method. The API response contains the normal PDF contents that are saved on the disk.

This article has taught us the process of changing XFA to PDF. To transform a XPS file to PDF, refer to the article Convert XPS to PDF with Java REST API.