Repeating Headers in PDF Generation with `barryvdh/laravel-dompdf`

As developers working with PDF generation in Laravel, one of the most common hurdles is ensuring that repetitive elements, like page headers or footers, appear consistently across every generated page. When using packages like barryvdh/laravel-dompdf, achieving this requires understanding how HTML is rendered into a fixed-layout format like PDF.

This post will walk you through the correct, developer-centric way to repeat your header across multiple pages when generating PDFs.

Understanding the Challenge

The issue you are facing—the header not repeating—usually stems from how the underlying HTML structure is interpreted by the PDF rendering engine (Dompdf). Standard HTML flow dictates that elements appear once. To force repetition, we need to structure our HTML template so that the header element is explicitly included within the content block that repeats on each page.

The laravel-dompdf package itself is a wrapper; it doesn't inherently solve structural HTML problems, but it provides the mechanism to feed an HTML document into the PDF generator. Therefore, the solution lies entirely in crafting the correct input HTML.

The Solution: Structuring for Repetition

The key to repeating content is iterating over your data and ensuring that the header markup is part of the content being iterated. If you are generating a multi-page report, your main Blade view must loop through the sections or pages, and inside that loop, you place the recurring header HTML.

Here is a practical example demonstrating how to structure your view to achieve repeated headers:

Example Implementation

Let's assume you have data representing multiple sections or pages you want to generate in one PDF.

<!DOCTYPE html>
<html>
<head>
    <title>Report</title>
    <style>
        /* Basic CSS for demonstration */
        body { font-family: sans-serif; }
        .page-header { 
            background-color: #f0f0f0; 
            padding: 10px; 
            border-bottom: 2px solid #ccc; 
            margin-bottom: 20px;
        }
    </style>
</head>
<body>

    <!-- Start of Repeating Header Block -->
    <div class="page-header">
        <h1>Document Title - Page {{ $page_number }}</h1>
        <p>Generated by Laravel Report Generator</p>
    </div>
    <!-- End of Repeating Header Block -->

    <!-- Main Content Area (This section repeats for each iteration) -->
    <h2>Section Content</h2>
    <p>This is the unique content for this specific page or section.</p>
    
    <!-- In a real application, you would loop through your data here: -->
    @for ($i = 1; $i <= 3; $i++)
        <div style="page-break-before: always;">
            <!-- Replicating the header for each iteration -->
            <div class="page-header">
                <h1>Document Title - Page {{ $i }}</h1>
                <p>Generated by Laravel Report Generator</p>
            </div>
            <h2>Content for Page {{ $i }}</h2>
            <p>This is the specific content for page number {{ $i }}.</p>
        </div>
    @endfor

</body>
</html>

Explanation of Best Practices

Notice how in the example above, we explicitly place the <div class="page-header"> block inside the loop (@for). By ensuring that this header structure is generated for every iteration, Dompdf will render it on every page break.

When you are dealing with complex data structures—such as reports based on Eloquent collections or large datasets, a core concept in Laravel development—structuring your Blade view to handle repetition is crucial. This mirrors the principles of clean, modular code that we strive for across the entire framework community, much like the cohesive architecture found within laravelcompany.com.

Conclusion

To successfully repeat headers when using barryvdh/laravel-dompdf, stop thinking about forcing repetition through CSS hacks and start thinking about HTML structure. By embedding your header markup directly within the loop that generates your page content, you ensure that Dompdf receives a unique, complete block of HTML for every segment, thus guaranteeing consistent and repeatable headers across your final PDF output. Focus on the data flow in your Blade templates, and the PDF generation will follow seamlessly.

Repeat header on every page with barryvdh/laravel-dompdf