HTML2PDF Java (Exemple de Code Tutoriel)

Prérequis

To create a PDF Java conversion application, you need to download and install the following prerequisites:

1. Java Development Kit (JDK): The latest version of the JDK must be installed on your computer for the PDF conversion application to compile and run. Le JDK peut être téléchargé depuis le site Web d'Oracle.
2. Maven: Maven must be installed as it is a build automation tool used mainly for Java projects. Maven peut être téléchargé depuis le site Web d'Apache Maven.

3. IronPDF Java Library: Now you need to add the latest version of the IronPDF Java Library as a dependency to your PDF conversion application. Add the following IronPDF dependency to the pom.xml file of your project:

   <dependency>
       <groupId>com.ironsoftware</groupId>
       <artifactId>ironpdf</artifactId>
       <version>LATEST_VERSION</version>
   </dependency>

   <dependency>
       <groupId>com.ironsoftware</groupId>
       <artifactId>ironpdf</artifactId>
       <version>LATEST_VERSION</version>
   </dependency>

   XML

4. Vous devrez également ajouter la dépendance Slf4j dans le fichier pom.xml.

   <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>
       <version>2.0.5</version>
   </dependency>

   <dependency>
       <groupId>org.slf4j</groupId>
       <artifactId>slf4j-simple</artifactId>
       <version>2.0.5</version>
   </dependency>

   XML

Once all the prerequisites are downloaded and installed, the project can now be used to convert HTML files to PDF documents in Java applications.

Adding Necessary Imports and License Key

First, you need to add the IronPDF import to your main Java file where you want to run the code for the PDF converter. You need to import all the required classes, and this can be done with this single line of code:

import com.ironsoftware.ironpdf.*;

import com.ironsoftware.ironpdf.*;

Next, in the main method, enter the license key you obtained at the time of purchase or trial key using the IronPDF setLicenseKey.

// Set the license key for IronPDF. Replace "Your license key" with your actual license key.
License.setLicenseKey("Your license key");

// Set the license key for IronPDF. Replace "Your license key" with your actual license key.
License.setLicenseKey("Your license key");

Convertir une chaîne HTML en PDF

IronPDF can convert HTML content to PDF with simply one line of code.

// Convert an HTML string to a PDF document.
PdfDocument myPdf = PdfDocument.renderHtmlAsPdf("<h1> ~HTML2PDF in JAVA~ </h1> Made with IronPDF!");

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

// Convert an HTML string to a PDF document.
PdfDocument myPdf = PdfDocument.renderHtmlAsPdf("<h1> ~HTML2PDF in JAVA~ </h1> Made with IronPDF!");

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

In the above code, the renderHtmlAsPdf method is used to pass the HTML string that will be converted to a PDF document. Then the saveAs method is called to generate the PDF.

This creates a PDF document named "html_saved.pdf" which contains the HTML content passed as a string.

Convert HTML File to PDF

With the following code, you can convert the HTML file into a PDF document:

// Render the HTML file as a PDF. The resulting PDF is stored in myPdf as a PdfDocument object.
PdfDocument myPdf = PdfDocument.renderHtmlFileAsPdf("example.html");

// Save the PdfDocument to a file.
myPdf.saveAs(Paths.get("html_file_saved.pdf"));

// Render the HTML file as a PDF. The resulting PDF is stored in myPdf as a PdfDocument object.
PdfDocument myPdf = PdfDocument.renderHtmlFileAsPdf("example.html");

// Save the PdfDocument to a file.
myPdf.saveAs(Paths.get("html_file_saved.pdf"));

Here, the renderHtmlFileAsPdf method is used to convert an HTML file into a PDF file. CSS and JavaScript can also be rendered along with the HTML file, preserving the layout and formatting of the HTML file.

Convert HTML URL to PDF

Sometimes you want to create PDF files directly from a web page. For this purpose, the IronPDF library provides the method renderUrlAsPdf to convert HTML from a URL to PDF. So the URL is used as an argument to the method.

// Render the HTML content from a URL as a PDF. The resulting PDF is stored in myPdf as a PdfDocument object.
PdfDocument myPdf = PdfDocument.renderUrlAsPdf("https://ironpdf.com");

// Save the PdfDocument to a file.
myPdf.saveAs(Paths.get("url.pdf"));

// Render the HTML content from a URL as a PDF. The resulting PDF is stored in myPdf as a PdfDocument object.
PdfDocument myPdf = PdfDocument.renderUrlAsPdf("https://ironpdf.com");

// Save the PdfDocument to a file.
myPdf.saveAs(Paths.get("url.pdf"));

You can also specify the formatting of the PDF file, such as page size, page orientation, margin size, layout, and many other properties simply by using the ChromePdfRenderOptions and passing the layout options in the renderUrlAsPdf method as the second argument.

After running the project with any of the above code samples, PDF files will be generated for all HTML content. Below you can see the sample output of "Convert HTML to PDF".

URL to PDF Output

You can find further code examples to create PDFs from HTML on IronPDF's website for Java developers.

IronPDF Website

IronPDF rend toutes les images et le texte sans perdre aucun formatage. Les boutons sont cliquables et les zones de texte sont modifiables dans le fichier PDF.