Generating a PDF file can be a useful and necessary task in many software applications. PDFPro is a powerful tool that can be used to create PDF files programmatically. In this blog post, we will explore how to generate a PDF file using PDFPro with code, as well as the API that can be used to perform this task.

1. Installing PDFPro:

Before we can start generating PDF files using PDFPro, we need to install the library. PDFPro can be installed using Maven by adding the following dependency to your project’s pom.xml file:

<dependency>

<groupId>com.pdfpro</groupId>

<artifactId>pdfpro-java</artifactId>

<version>1.0.0</version>

</dependency>

 

2. Generating a PDF file with PDFPro

To generate a PDF file using PDFPro in Java, we need to create a PdfWriter object and use it to write the contents of the PDF file. The following code snippet shows how to create a PDF file and add some text to it:

import com.pdfpro.api.PdfWriter; public class Main {

public static void main(String[] args) {

 

// Create a PdfWriter object PdfWriter writer = new PdfWriter();

 

// Add a page to the PDF file writer.addPage();

 

// Add some text to the page writer.addText("Hello, world!", 100, 100);

 

// Save the PDF file writer.saveAs("hello.pdf");

In this example, we create a PdfWriter object, add a page to the PDF file using the addPage() method, and then add some text to the page using the addText() method. Finally, we save the PDF file using the save () method.

3.  Using the PDFPro API

PDFPro also provides an API that can be used to generate PDF files. The API is a web service that can be accessed using HTTP requests. The following code snippet shows how to generate a PDF file using the PDFPro API in Java:

import java.io.FileOutputStream; import java.io.InputStream; import java.net.URL;

import java.net.URLEncoder;

 

public class Main {

public static void main(String[] args) throws Exception {

// Define the API endpoint

String endpoint = "https://api.pdfpro.co/v1/convert";

 

// Define the request parameters

String input = "https://example.com/mydocument.docx";

String output = "pdf"; String key = "myapikey";

String url = endpoint + "?input=" + URLEncoder.encode(input, "UTF-8") + "&output=" + URLEncoder.encode(output, "UTF-8") +

"&key=" + URLEncoder.encode(key, "UTF-8");

 

// Send the API request URL api = new URL(url);

InputStream in = api.openStream();

FileOutputStream out = new FileOutputStream("output.pdf"); byte[] buffer = new byte[1024];

int bytesRead;

while ((bytesRead = in.read(buffer)) != -1) { out.write(buffer, 0, bytesRead);

}

in.close();

out.close();

 

In this example, we define the API endpoint and the request parameters. We then send the API request using the openStream() method of a URL object and save the PDF file using a FileOutputStream.

4.  Conclusion:-

In this blog post, we have explored how to generate a PDF file using PDFPro with code in Java, as well as the API that can be used to perform this task. PDFPro is a powerful tool that can be used to create PDF files programmatically, and it provides a wide range of features that can be used to customize the appearance and content of PDF files.