Convert URL to PDF in Java. For details: https://kb.aspose.com/pdf/java/convert-url-to-pdf-in-java/

Convert URL to PDF.java

import com.aspose.pdf.*;
import java.io.*;
import java.net.*;

public class HtmlToPdfConverter {
    public static void main(String[] args) throws Exception {
        // Initialize and apply Aspose.PDF license
        License pdfLicense = new License();
        pdfLicense.setLicense("license.lic");

        // Convert an online HTML page to PDF
        generatePdfFromWebPage();
        System.out.println("Webpage Link to PDF process finished.");
    }

    // Method to fetch and convert an HTML webpage to a PDF document
    private static void generatePdfFromWebPage() {
        // Define the webpage URL to be converted
        final String webpageUrl = "https://docs.aspose.com/";

        // Configure PDF page settings for conversion
        HtmlLoadOptions pdfOptions = new HtmlLoadOptions(webpageUrl);
        pdfOptions.getPageInfo().setWidth(1200); // Setting custom page width
        pdfOptions.getPageInfo().setHeight(850); // Setting custom page height
        pdfOptions.getPageInfo().setLandscape(false); // Keeping portrait orientation

        // Fetch the webpage content and create a PDF document
        try (InputStream webContentStream = fetchWebContentAsStream(webpageUrl);
             Document pdfDocument = new Document(webContentStream, pdfOptions)) {

            // Save the generated PDF file
            pdfDocument.save("Converted_WebPage.pdf");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    // Method to retrieve the content of a webpage as a stream
    private static InputStream fetchWebContentAsStream(String webpageUrl) throws IOException {
        // Create a URL object from the given webpage URL
        URL url = new URL(webpageUrl);

        // Open a connection to the URL
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();

        // Set the request method to GET
        connection.setRequestMethod("GET");

        // Allow input stream retrieval
        connection.setDoInput(true);

        // Establish the connection
        connection.connect();

        // Return the webpage content as an input stream
        return connection.getInputStream();
    }
}