Save Java HTML as PDF

There are various ways to save HTML as PDF, but when I tried searching on the net, it would be complicated.

Now, in the main text, I will show you how to save the HTML format of HTML String and HTML file as PDF through Spire.Doc for Java.

Preparation

1. From the official website of E-iceblue Free Spire.doc for Java Download the free version.

2. Start the IDE, create a new project, and then add the appropriate Spire.doc.jar for the installed files to your references.

HTML String PDF

public class htmlStringToWord {

public static void main(String[] args) throws Exception {

    String inputHtml = "InputHtml.txt";
    //Create a document.
    Document document = new Document();
    //Add a section.
    Section sec = document.addSection();

    String htmlText = readTextFromFile(inputHtml);
    //Add a paragraph and an html string.
    sec.addParagraph().appendHTML(htmlText);

    //Save as PDF.
    document.saveToFile("HTMLstringToPDF.pdf", FileFormat.PDF);
}
public static String readTextFromFile(String fileName) throws IOException{
    StringBuffer sb = new StringBuffer();
    BufferedReader br = new BufferedReader(new FileReader(fileName));
    String content = null;
    while ((content = br.readLine()) != null) {
        sb.append(content);
    }
    return sb.toString();
}

}

 <h4> Save HTML file as PDF </h4>
```java
import com.spire.doc.*;
import com.spire.doc.documents.XHTMLValidationType;

public class htmlFileToWord {

    public static void main(String[] args) throws Exception {
        //Load the HTML file.
        Document document = new Document();
        document.loadFromFile("InputHtmlFile.html", FileFormat.Html, XHTMLValidationType.None);

        //you save.
        document.saveToFile("Result.pdf",FileFormat.PDF);
    }
}