Convertir HTML a PDF en Node.js sin Puppeteer

2.1. Noteworthy Features of IronPDF

1. PDF Generation: IronPDF empowers developers to craft PDF documents from the ground up, granting them complete control over content, formatting, and layout.
2. PDF Parsing: This library facilitates the extraction of text, images, and other elements from existing PDF files, providing developers with the ability to manipulate the data stored within these documents.
3. PDF Modification: IronPDF supports the dynamic modification of pre-existing PDF files, enabling the addition, removal, or updating of content as needed.
4. PDF Rendering: Developers using IronPDF can render PDF files in diverse formats, including from images or from HTML. This versatility expands the options for displaying PDF content within web applications.
5. Cross-Platform Compatibility: Designed with compatibility in mind, IronPDF seamlessly operates across different operating systems, ensuring consistent behavior regardless of the deployment environment.

4.1. Creating PDF Files from a URL Using IronPDF

Converting a web page to a PDF is a frequent requirement, especially when dealing with dynamic content generated by a server. IronPDF makes this process simple. Here's a basic code example:

import { PdfDocument } from "@ironsoftware/ironpdf";

(async () => {
  // URL of the web page to convert to PDF
  const url = "https://google.com";

  // Create a PDF document from the specified URL
  const pdf = await PdfDocument.fromUrl(url);

  // Save the PDF to a file
  await pdf.saveAs("output_from_url.pdf");
})();

import { PdfDocument } from "@ironsoftware/ironpdf";

(async () => {
  // URL of the web page to convert to PDF
  const url = "https://google.com";

  // Create a PDF document from the specified URL
  const pdf = await PdfDocument.fromUrl(url);

  // Save the PDF to a file
  await pdf.saveAs("output_from_url.pdf");
})();

This code uses the IronPDF library to convert a web page (Google's homepage in this example) into a PDF file. It specifies the URL of the page, generates a PDF with the PdfDocument.fromUrl method, and saves it as "output_from_url.pdf". The entire process is wrapped in an asynchronous function to ensure sequential execution. This snippet showcases the simplicity of leveraging IronPDF for HTML to PDF conversions in Node.js.

Output PDF generated from a URL using IronPDF library

4.2. HTML String to PDF File

If you have HTML content as a string and need to convert it to a PDF, IronPDF provides a convenient method for this scenario as well:

import { PdfDocument } from "@ironsoftware/ironpdf";

(async () => {
  // Create a PDF from an HTML string
  const htmlString = "<h1>Hello Developers! This is an Example PDF created with IronPDF</h1>";
  const pdf = await PdfDocument.fromHtml(htmlString);

  // Export the PDF to a file
  await pdf.saveAs("output.pdf");
})();

import { PdfDocument } from "@ironsoftware/ironpdf";

(async () => {
  // Create a PDF from an HTML string
  const htmlString = "<h1>Hello Developers! This is an Example PDF created with IronPDF</h1>";
  const pdf = await PdfDocument.fromHtml(htmlString);

  // Export the PDF to a file
  await pdf.saveAs("output.pdf");
})();

This code example uses the IronPDF library to quickly convert a simple HTML string (a heading tag) into a PDF document. It then saves the generated PDF as "output.pdf." The script is concise, employing an asynchronous function for sequential execution. This showcases the simplicity of creating PDFs from HTML using IronPDF in a Node.js environment.

Output PDF generated from an HTML string using IronPDF library

4.3. HTML File to PDF

For situations where the HTML content is stored in a file, IronPDF provides a straightforward method to convert it to a PDF. Here's an example:

import { PdfDocument } from "@ironsoftware/ironpdf";

(async () => {
  // Render the HTML file
  const pdf = await PdfDocument.fromHtml("label.html");

  // Export the PDF document
  await pdf.saveAs("output.pdf");
})();

import { PdfDocument } from "@ironsoftware/ironpdf";

(async () => {
  // Render the HTML file
  const pdf = await PdfDocument.fromHtml("label.html");

  // Export the PDF document
  await pdf.saveAs("output.pdf");
})();

This code snippet utilizes the IronPDF library to convert the content of an HTML file ("label.html") into a PDF document. The rendered PDF is then saved as "output.pdf". The simplicity of this process is highlighted by the concise script, which employs an asynchronous function for sequential execution in a Node.js environment.

Output PDF generated from an HTML file using IronPDF library