Based on https://ironpdf.com/docs/docs/

IronPDF for Java by Iron Software is a robust library that aids Software Engineers in creating, editing, and extracting content from PDFs within Java 8+, Kotlin, and Scala projects.

IronPDF for Java extends the widespread recognition and capabilities of IronPDF for .NET.

Communication with the IronPdfEngine in IronPDF for Java is facilitated through gRPC technology.

• Creation of PDFs from various sources like HTML, URL, JavaScript, CSS, and various image formats.
• Capability to add headers, footers, digital signatures, attachments, and implement security measures like passwords.
• Optimized for performance with support for Full Multithreading and Asynchronous operations.
• Discover more at our website by checking all our code demos and a comprehensive list of over 50 features.

Include IronPDF in your pom.xml as follows:

<dependencies>
    
    <dependency>
        <groupId>com.ironsoftware</groupId>
        <artifactId>ironpdf</artifactId>
        <version>20xx.xx.xxxx</version>
    </dependency>

    
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-simple</artifactId>
        <version>2.0.3</version>
    </dependency>

</dependencies>

If preferred, the IronPDF JAR file can be downloaded manually here for use without dependency management tools.

Upon your project's first run, IronPdfEngine binaries are provided automatically. The engine initiates as soon as any IronPDF method is invoked and terminates when the app closes or becomes idle.

For a quicker startup, installing the IronPDF Engine as a Maven dependency is recommended, allowing pre-download during dependency resolution:

Add the appropriate dependency to your pom.xml depending on your operating system:

<dependency>
    <groupId>com.ironsoftware</groupId>
    <artifactId>ironpdf-engine-windows-x64</artifactId>
    <version>20xx.xx.xxxx</version>
</dependency>

<dependency>
    <groupId>com.ironsoftware</groupId>
    <artifactId>ironpdf-engine-windows-x86</artifactId>
    <version>20xx.xx.xxxx</version>
</dependency>

<dependency>
    <groupId>com.ironsoftware</groupId>
    <artifactId>ironpdf-engine-linux-x64</artifactId>
    <version>20xx.xx.xxxx</version>
</dependency>

<dependency>
    <groupId>com.ironsoftware</groupId>
    <artifactId>ironpdf-engine-macos-x64</artifactId>
    <version>20xx.xx.xxxx</version>
</dependency>

<dependency>
    <groupId=com.ironsoftware</groupId>
    <artifactId=ironpdf-engine-macos-arm64</artifactId>
    <version>20xx.xx.xxxx</version>
</dependency>

After setting up the dependency, begin by importing IronPDF in your Java code:

// Importing IronPDF Java library
import com.ironsoftware.ironpdf.*;

// Input your license key here
License.setLicenseKey("YOUR-LICENSE-KEY");

// Setting up the logging path
Settings.setLogPath(Paths.get("C:/tmp/IronPdfEngine.log"));

// Convert HTML to PDF and store it in a PdfDocument object
PdfDocument myPdf = PdfDocument.renderHtmlAsPdf("<h1> ~Hello World~ </h1> Made with IronPDF!");

// Saving the generated PDF document
myPdf.saveAs(Paths.get("html_saved.pdf"));

Here's another straightforward example that converts a URL to PDF:

// Import IronPDF Java library
import com.ironsoftware.ironpdf.*;

// Apply your license key here
License.setLicenseKey("YOUR-LICENSE-KEY");

// Set the logging path
Settings.setLogPath(Paths.get("C:/tmp/IronPdfEngine.log"));

// Convert a URL to PDF and store it
PdfDocument myPdf = PdfDocument.renderUrlAsPdf("https://ironpdf.com/java");

// Save the PDF document to a file
myPdf.saveAs(Paths.get("url_saved.pdf"));

package org.example;

// Import IronPDF Java library
import com.ironsoftware.ironpdf.*;
import java.io.IOException;
import java.nio.file.Paths;

public class Main {

    public static void main(String[] args) throws IOException {
        // Input your license key
        License.setLicenseKey("YOUR-LICENSE-KEY");

        // Specify the logging path
        Settings.setLogPath(Paths.get("C:/tmp/IronPdfEngine.log"));

        // Convert HTML content to PDF
        PdfDocument myPdf = PdfDocument.renderHtmlAsPdf("<h1> ~Hello World~ </h1> Made with IronPDF!");

        // Save the created PDF to a file
        myPdf.saveAs(Paths.get("html_saved.pdf"));

    }

}

Remember, all settings, such as logging and licensing, must be set before employing any IronPDF methods.

To activate your license, insert the following at the top of your method:

com.ironsoftware.ironpdf.License.setLicenseKey("YOUR-LICENSE-KEY");

Use the slf4j logger to activate logging. Enable debugging like so:

com.ironsoftware.ironpdf.Settings.setDebug(true);

To designate an IronPdfEngine log path, use:

com.ironsoftware.ironpdf.Settings.setLogPath(Paths.get("C:/tmp/myIronPdfEngineLog.log"));

To obtain a license for commercial use of IronPDF, please purchase a license here. A 30-day trial is also available for trial users.

For a full suite of code examples, tutorials, licensing details, and documentation, please visit: IronPDF for Java resources.

For further support and questions, you might contact our support team directly.