How Can I Generate a PDF from an HTML Div Using JavaScript and jsPDF?-JS Tutorial-php.cn

How Can I Generate a PDF from an HTML Div Using JavaScript and jsPDF?

Linda Hamilton

Release： 2024-11-30 02:01:11

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How Can I Generate a PDF from an HTML Div Using JavaScript and jsPDF?

Generate PDF from HTML in Div Using JavaScript

Problem

You have HTML code containing a div with an id of "pdf" that you want to print to a PDF file named "foobar.pdf" using JavaScript. However, jspdf only accepts string values and does not have a function to print HTML.

Solution

To enable jsPDF to print HTML, you need to include the following plugins in your project:

jspdf.plugin.from_html.js
jspdf.plugin.split_text_to_size.js
jspdf.plugin.standard_fonts_metrics.js

Additionally, if you want to ignore certain elements in the HTML, you can mark them with an ID and then use a special element handler in jsPDF to exclude those elements from printing. For example, the updated HTML code with an ignored element:

<!DOCTYPE html>
<html>
  <body>
    <p>

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JavaScript Code

This JavaScript code will generate a PDF with the content of the "pdf" div and open it in a new window:

var doc = new jsPDF();
var elementHandler = {
  '#ignorePDF': function (element, renderer) {
    return true;
  }
};
var source = window.document.getElementsByTagName("body")[0];
doc.fromHTML(source, 15, 15, {
  'width': 180,
  'elementHandlers': elementHandler
});

doc.output("dataurlnewwindow");

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Notes

You can only use element IDs for exclusion in element handlers. Class selectors are not supported.
jsPDF ignores CSS styles, but it can format headings (h1, h2, etc.) and text within text nodes. Elements like textareas are not supported for printing.

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