HTML to PDF

Converting HTML to PDF with code offers more control and flexibility compared to online tools. Here are some ways to achieve this:

1. Using Python Libraries:

Python provides several libraries for HTML to PDF conversion. Here are two popular options: WeasyPrint (using wkhtmltopdf): This library utilizes the powerful wkhtmltopdf tool for rendering HTML and generating PDFs. It offers fine-grained control over the conversion process. Here's an example using WeasyPrint:

Python
from weasyprint import HTML

html_file = "my_report.html"  # Replace with your HTML file path
pdf_file = "report.pdf"

HTML(filename=html_file).write_pdf(pdf_file)

print("Converted HTML to PDF successfully!")
Use code with caution.

PDFKit (using wkhtmltopdf): Similar to WeasyPrint, PDFKit leverages wkhtmltopdf. It offers a simpler API for basic conversions.

Here's an example using PDFKit:

Python
import pdfkit

url = "https://www.example.com"  # Replace with a URL or HTML file path
pdf_file = "website.pdf"

pdfkit.from_url(url, pdf_file)  # For URLs
# or
pdfkit.from_file(html_file, pdf_file)  # For local HTML files

print("Converted HTML to PDF successfully!")
Use code with caution.

2. Using JavaScript Libraries:

For client-side conversion within a web browser, JavaScript libraries like jsPDF can be used. These libraries allow generating PDFs directly from HTML content in your web page. Here's a basic example using jsPDF:

JavaScript
var doc = new jsPDF();
doc.text("Hello, World!", 10, 10);
doc.save('my_document.pdf');
Use code with caution.

Choosing the right method depends on your needs: Python libraries offer more control and flexibility for server-side conversions. JavaScript libraries are suitable for client-side conversions within web pages. Remember, these are just basic examples. Each library offers a variety of features and options for customizing the conversion process. Make sure to explore the documentation for the chosen library to get the most out of it.

3. Java

There are two popular libraries for converting HTML to PDF in Java:

IronPDF

IronPDF provides a user-friendly API for converting HTML content (strings, files, or URLs) into well-formatted PDFs. It offers excellent support for modern web standards (HTML, CSS, and JavaScript), ensuring your PDFs look close to the original HTML.

Example

import com.ironsoftware.ironpdf.*;

public class HtmlToPdf {

public static void main(String[] args) throws Exception {
  // Convert HTML string to PDF
  String htmlContent = "<h1>Hello World!</h1>";
  PdfDocument myPdf = PdfDocument.renderHtmlAsPdf(htmlContent);

  // Save the PDF
  myPdf.saveAs("html_string.pdf");

  // Alternatively, convert an HTML file
  String htmlFilePath = "my_report.html";
  myPdf = PdfDocument.renderHtmlFileAsPdf(htmlFilePath);
  myPdf.saveAs("report.pdf");

  System.out.println("Converted HTML to PDF successfully!");
}
}

OpenPDF

OpenPDF is another well-established library for converting various data formats (including HTML) to PDF. It offers fine-grained control over the conversion process, allowing you to customize aspects like page layout, fonts, and image handling.

Example

import com.openpdf.Content;
import com.openpdf.Encoding;
import com.openpdf.PDFWriter;
import com.openpdf.exceptions.pdf.PDFException;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;

public class HtmlToPdfOpenPDF {

public static void main(String[] args) throws Exception {
String htmlFilePath = "my_report.html";

// Read and parse the HTML file using Jsoup
Document htmlDoc = Jsoup.parse(new File(htmlFilePath), Encoding.UTF_8.toString());
String htmlContent = htmlDoc.toString();

// Create a new PDFWriter instance
PDFWriter writer = new PDFWriter();

// Add the HTML content as text
writer.add(new Content(htmlContent, Content.TEXT, Encoding.UTF_8.toString()));

// Save the PDF
writer.save("report_openpdf.pdf");

System.out.println("Converted HTML to PDF successfully!");
}
}

Choosing the right library depends on your specific needs:

• IronPDF offers a simpler API and excellent support for modern web standards for quicker conversions.
• OpenPDF provides a more granular level of control for advanced customization.

Remember, these are just basic examples. Make sure to consult the official documentation of each library for detailed usage instructions and advanced features.