Quick Start for Java

Java supports wkhtmltopdf integration, but Puppeteer requires additional workarounds due to its lack of native support. PDFBolt's PDF generation API offers a faster and more reliable approach to generating PDFs from HTML, URLs, and dynamic templates. Follow these steps to get started with Java.

1. Get Your API Key

Your API Key is available in the Admin Dashboard under the API Keys section after registration.
Ensure you keep this key secure, as it is required for authorization requests to the PDFBolt API.

2. Make Your First Request

Use the following examples to quickly make requests to the PDFBolt API and generate your PDF documents.

Choose your preferred endpoint and source combination.

➡️ Endpoints:

Direct Endpoint
Sync
Async

The Direct endpoint provides immediate PDF generation and returns the raw PDF file in the response.

➡️ Sources:

URL
HTML
Template

Convert any webpage into a PDF:

import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Paths;

public class PDFBoltIntegrationUrl {
    public static void main(String[] args) throws Exception {
        String jsonBody = """
            {
                "url": "https://example.com",
                "format": "A4",
                "printBackground": true
            }
            """;

        var client = HttpClient.newHttpClient();
        var request = HttpRequest.newBuilder()
                .uri(URI.create("https://api.pdfbolt.com/v1/direct"))
                .header("API-KEY", "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX")
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(jsonBody))
                .build();

        var response = client.send(request, HttpResponse.BodyHandlers.ofByteArray());

        if (response.statusCode() == 200) {
            Files.write(Paths.get("webpage.pdf"), response.body());
            System.out.println("PDF generated successfully");
        } else {
            System.err.println("HTTP " + response.statusCode());
            System.err.println("Error Message: " + new String(response.body()));
        }
    }
}

Convert HTML content directly into a PDF:

import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Base64;

public class PDFBoltIntegrationHtml {
    public static void main(String[] args) throws Exception {
        String htmlContent = "<html><body><h1>Hello!</h1><p>This is a sample PDF.</p></body></html>";
        String base64Html = Base64.getEncoder().encodeToString(htmlContent.getBytes());

        String jsonBody = """
            {
                "html": "%s",
                "margin": {
                    "top": "30px",
                    "left": "30px"
                }
            }
            """.formatted(base64Html);

        var client = HttpClient.newHttpClient();
        var request = HttpRequest.newBuilder()
                .uri(URI.create("https://api.pdfbolt.com/v1/direct"))
                .header("API-KEY", "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX")
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(jsonBody))
                .build();

        var response = client.send(request, HttpResponse.BodyHandlers.ofByteArray());

        if (response.statusCode() == 200) {
            Files.write(Paths.get("document.pdf"), response.body());
            System.out.println("PDF generated successfully");
        } else {
            System.err.println("HTTP " + response.statusCode());
            System.err.println("Error Message: " + new String(response.body()));
        }
    }
}

Use reusable templates for dynamic PDF generation:

import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Paths;

public class PDFBoltIntegrationTemplate {
    public static void main(String[] args) throws Exception {
        String jsonBody = """
            {
                "templateId": "your-template-id",
                "templateData": {
                    "client_name": "John Doe",
                    "invoice_number": "INV-001",
                    "total_amount": "$299.99",
                    "line_items": [
                        {
                            "description": "Web Development",
                            "unit_price": "$200.00"
                        },
                        {
                            "description": "Design Services",
                            "unit_price": "$99.99"
                        }
                    ]
                }
            }
            """;

        var client = HttpClient.newHttpClient();
        var request = HttpRequest.newBuilder()
                .uri(URI.create("https://api.pdfbolt.com/v1/direct"))
                .header("API-KEY", "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX")
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(jsonBody))
                .build();

        var response = client.send(request, HttpResponse.BodyHandlers.ofByteArray());

        if (response.statusCode() == 200) {
            Files.write(Paths.get("invoice.pdf"), response.body());
            System.out.println("PDF generated successfully");
        } else {
            System.err.println("HTTP " + response.statusCode());
            System.err.println("Error Message: " + new String(response.body()));
        }
    }
}

New to templates?

Quick Start for Java

1. Get Your API Key

2. Make Your First Request

3. What's next?

📄️ API Endpoints

📄️ Conversion Parameters

1. Get Your API Key​

2. Make Your First Request​

3. What's next?​

📄️ API Endpoints

📄️ Conversion Parameters

1. Get Your API Key

2. Make Your First Request

3. What's next?