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How to print Image or SVG in DOM/PDF

I searched FOREVER until I finally came up with my own solution. I thought I should share in case it could be useful to anyone else. If you are using PHP the best solution to inline SVG images (for me) is to output it using BASE64_ENCODE() on the actual svg, then wrapping it in an image using the src as follows:

$svg = ‘<svg xmlns=”” xmlns:xlink=”” viewBox=”0 0 36 36″ class=”circular-chart”>
<path class=”circle-bg”
d=”M18 2.0845
a 15.9155 15.9155 0 0 1 0 31.831
a 15.9155 15.9155 0 0 1 0 -31.831″

$html = ‘<img src=”data:image/svg+xml;base64,’.base64_encode($svg).'” width=”100″ height=”100″ />’;

Place image in DOM PDF

// instantiate and use the dompdf class

        if ($_SERVER[‘HTTP_HOST’] == ‘localhost’) {
            $options = new Dompdf\Options();
            $options->set(‘isRemoteEnabled’, true);
            $dompdf = new Dompdf\DOMPDF();
        } else {
            $options = new \Dompdf\Options();
            $options->set(‘isRemoteEnabled’, true);
            $options->set(‘isHtml5ParserEnabled’, true);
            $options->set(‘fontDir’, $tmp);
            $options->set(‘fontCache’, $tmp);
            $options->set(‘tempDir’, $tmp);
            $options->set(‘chroot’, $tmp);
            $dompdf = new \Dompdf\Dompdf($options);
            $contxt = stream_context_create([
                ‘ssl’ => [
                    ‘verify_peer’ => false,
                    ‘verify_peer_name’ => false,
                    ‘allow_self_signed’ => true,
 // instantiate and use the dompdf class compulsory classes need to put IN DOM function
$logo = get_theme_mod(‘custom_logo’);
if ($logo) {
    $image_url = wp_get_attachment_image_url($logo, ‘full’);
    if ($image_url) {
        // Embed the logo as a data URI to include it in the PDF
        $logo_data_uri = base64_encode(file_get_contents($image_url));
        $pdf_content .= “<img src=’data:image/jpeg;base64,{$logo_data_uri}’ alt='” . get_bloginfo(‘name’) . “‘ class=’logo’>”;

In today’s digital age, the need to print images or SVGs (Scalable Vector Graphics) in both web pages and PDF documents has become increasingly common. Whether you’re a web developer, designer, or content creator, understanding the intricacies of printing images and SVGs is essential for delivering high-quality and visually appealing content. In this guide, we’ll explore step-by-step methods and best practices for printing images and SVGs in both the Document Object Model (DOM) and PDF formats.

  1. Understanding Image and SVG Printing:
    • Before diving into the technical aspects, it’s crucial to understand the fundamentals of image and SVG printing. Images, in formats such as JPEG, PNG, or GIF, are raster graphics composed of pixels. On the other hand, SVGs are vector graphics that use mathematical equations to define shapes, making them infinitely scalable without losing quality.
    • Considerations such as resolution, color modes, and file formats play a significant role in ensuring optimal printing quality for both images and SVGs.
  2. Printing Images in DOM:
    • When printing images within a web page (DOM), developers need to consider various factors to ensure compatibility across different browsers and devices.
    • HTML <img> tags are commonly used to display images on web pages. To print images, ensure that the images are properly sized and optimized for printing using CSS media queries.
    • JavaScript can be utilized to trigger the print functionality, allowing users to print images directly from the browser. Implementing a print button or function that invokes the browser’s print dialog enhances user experience.
  3. Printing SVGs in DOM:
    • SVGs offer superior scalability and crispness compared to raster images, making them an ideal choice for high-quality printing.
    • Embedding SVGs directly within HTML using the <svg> tag provides flexibility in styling and manipulation.
    • To print SVGs, ensure proper handling of CSS styles, including fonts, colors, and dimensions, to maintain consistency between screen and print outputs.
    • Utilize JavaScript libraries such as SVG.js or D3.js to programmatically generate and manipulate SVGs for printing purposes, enabling dynamic visualization and customization options.
  4. Generating PDF Documents with Images and SVGs:
    • In scenarios where printed documents are required, generating PDF files becomes essential. Integrating images and SVGs into PDF documents requires specialized libraries and tools.
    • PHP libraries like TCPDF or FPDF offer robust capabilities for generating PDF documents with embedded images and SVGs. These libraries allow developers to define page layouts, add images, and include SVG graphics directly within the PDF content.
    • JavaScript frameworks like jsPDF provide client-side PDF generation capabilities, enabling dynamic creation of PDF documents from web applications. Images and SVGs can be added to PDFs using base64 encoding or direct SVG insertion methods.
  5. Best Practices for Image and SVG Printing:
    • Optimize image resolution and compression to balance quality and file size for efficient printing.
    • Use vector-based SVG graphics whenever possible to ensure sharpness and scalability across different print sizes.
    • Maintain consistency in color profiles and formatting between screen and print outputs to achieve accurate representation.
    • Test print outputs across various devices and printers to identify and resolve compatibility issues proactively.
    • Provide clear instructions or user prompts for printing actions to enhance usability and accessibility.

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"As a seasoned blogger, I bring expertise in HTML5, CSS3, JavaScript, SCSS, jQuery, PHP, MySQL, React, and Next.js to my articles. Continuously expanding my skill set, I'm passionate about exploring new technologies. Eager to engage with fellow software engineers, I invite connections from the community. Let's collaborate and innovate together!"

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