PDF to Image / PHP Examples

This page contains various examples of using the PDF to Image API in PHP. The examples are complete and fully functional. Read more about how to convert PDF to Image in PHP.

Basic examples
PHP website examples
Laravel examples
Symfony examples

Basic examples

PDF file to PNG file

<?php
require "pdfcrowd.php";

try
{
    // Create an API client instance.
    $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

    // If unsure whether the input is a single-page file, enforce ZIP output.
    $client->setOutputFormat("png");
    $client->setForceZip(true);

    // Run the conversion and save the result to a file.
    $client->convertFileToFile("/path/to/invoice.pdf", "invoice.zip");
}
catch(\Pdfcrowd\Error $why)
{
    error_log("PDFCrowd Error: {$why}");
    throw $why;
}

?>

PDF file to in-memory PNG

<?php
require "pdfcrowd.php";

try
{
    // Create an API client instance.
    $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

    // If unsure whether the input is a single-page file, enforce ZIP output.
    $client->setOutputFormat("png");
    $client->setForceZip(true);

    // Run the conversion and store the result in the `png` variable.
    $png = $client->convertFile("/path/to/invoice.pdf");

    // at this point the "png" variable contains PNG raw data and
    // can be sent in an HTTP response, saved to a file, etc.
}
catch(\Pdfcrowd\Error $why)
{
    error_log("PDFCrowd Error: {$why}");
    throw $why;
}

?>

PDF file to PNG stream

<?php
require "pdfcrowd.php";

try
{
    // Create an API client instance.
    $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

    // If unsure whether the input is a single-page file, enforce ZIP output.
    $client->setOutputFormat("png");
    $client->setForceZip(true);

    // Create an output stream for the conversion result
    $output_stream = fopen("invoice.zip", "wb");

    // Check for a file creation error.
    if (!$output_stream)
        throw new \Exception(error_get_last()['message']);

    // run the conversion and write the result to the output stream.
    $client->convertFileToStream("/path/to/invoice.pdf", $output_stream);

    // Close the output stream.
    fclose($output_stream);
}
catch(\Pdfcrowd\Error $why)
{
    error_log("PDFCrowd Error: {$why}");
    throw $why;
}

?>

PDF url to PNG file

<?php
require "pdfcrowd.php";

try
{
    // Create an API client instance.
    $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

    // If unsure whether the input is a single-page file, enforce ZIP output.
    $client->setOutputFormat("png");
    $client->setForceZip(true);

    // Run the conversion and save the result to a file.
    $client->convertUrlToFile("https://pdfcrowd.com/static/pdf/apisamples/invoice.pdf", "invoice.zip");
}
catch(\Pdfcrowd\Error $why)
{
    error_log("PDFCrowd Error: {$why}");
    throw $why;
}

?>

PDF url to in-memory PNG

<?php
require "pdfcrowd.php";

try
{
    // Create an API client instance.
    $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

    // If unsure whether the input is a single-page file, enforce ZIP output.
    $client->setOutputFormat("png");
    $client->setForceZip(true);

    // Run the conversion and store the result in the `png` variable.
    $png = $client->convertUrl("https://pdfcrowd.com/static/pdf/apisamples/invoice.pdf");

    // at this point the "png" variable contains PNG raw data and
    // can be sent in an HTTP response, saved to a file, etc.
}
catch(\Pdfcrowd\Error $why)
{
    error_log("PDFCrowd Error: {$why}");
    throw $why;
}

?>

PDF url to PNG stream

<?php
require "pdfcrowd.php";

try
{
    // Create an API client instance.
    $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

    // If unsure whether the input is a single-page file, enforce ZIP output.
    $client->setOutputFormat("png");
    $client->setForceZip(true);

    // Create an output stream for the conversion result
    $output_stream = fopen("invoice.zip", "wb");

    // Check for a file creation error.
    if (!$output_stream)
        throw new \Exception(error_get_last()['message']);

    // run the conversion and write the result to the output stream.
    $client->convertUrlToStream("https://pdfcrowd.com/static/pdf/apisamples/invoice.pdf", $output_stream);

    // Close the output stream.
    fclose($output_stream);
}
catch(\Pdfcrowd\Error $why)
{
    error_log("PDFCrowd Error: {$why}");
    throw $why;
}

?>

In-memory PDF to PNG file

<?php
require "pdfcrowd.php";

try
{
    // Create an API client instance.
    $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

    // If unsure whether the input is a single-page file, enforce ZIP output.
    $client->setOutputFormat("png");
    $client->setForceZip(true);

    // Run the conversion and save the result to a file.
    $client->convertRawDataToFile(file_get_contents("/path/to/hello_world.pdf"), "invoice.zip");
}
catch(\Pdfcrowd\Error $why)
{
    error_log("PDFCrowd Error: {$why}");
    throw $why;
}

?>

In-memory PDF to in-memory PNG

<?php
require "pdfcrowd.php";

try
{
    // Create an API client instance.
    $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

    // If unsure whether the input is a single-page file, enforce ZIP output.
    $client->setOutputFormat("png");
    $client->setForceZip(true);

    // Run the conversion and store the result in the `png` variable.
    $png = $client->convertRawData(file_get_contents("/path/to/hello_world.pdf"));

    // at this point the "png" variable contains PNG raw data and
    // can be sent in an HTTP response, saved to a file, etc.
}
catch(\Pdfcrowd\Error $why)
{
    error_log("PDFCrowd Error: {$why}");
    throw $why;
}

?>

In-memory PDF to PNG stream

<?php
require "pdfcrowd.php";

try
{
    // Create an API client instance.
    $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

    // If unsure whether the input is a single-page file, enforce ZIP output.
    $client->setOutputFormat("png");
    $client->setForceZip(true);

    // Create an output stream for the conversion result
    $output_stream = fopen("invoice.zip", "wb");

    // Check for a file creation error.
    if (!$output_stream)
        throw new \Exception(error_get_last()['message']);

    // run the conversion and write the result to the output stream.
    $client->convertRawDataToStream(file_get_contents("/path/to/hello_world.pdf"), $output_stream);

    // Close the output stream.
    fclose($output_stream);
}
catch(\Pdfcrowd\Error $why)
{
    error_log("PDFCrowd Error: {$why}");
    throw $why;
}

?>

Get info about the current conversion

<?php
require "pdfcrowd.php";

try
{
    // Create an API client instance.
    $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

    // If unsure whether the input is a single-page file, enforce ZIP output.
    $client->setOutputFormat("png");
    $client->setDebugLog(true);
    $client->setForceZip(true);

    // Run the conversion and save the result to a file.
    $client->convertFileToFile("/path/to/invoice.pdf", "invoice.zip");
    
    // print URL pointing to the debug log for this request.
    echo "Debug log url: " . $client->getDebugLogUrl() . "\n";
    
    // print number of conversion credits remaining in your account.
    echo "Remaining credit count: " . $client->getRemainingCreditCount() . "\n";
    
    // print number of credits consumed for this conversion.
    echo "Consumed credit count: " . $client->getConsumedCreditCount() . "\n";
    
    // print unique identifier assigned to this conversion job.
    echo "Job id: " . $client->getJobId() . "\n";
    
    // print total number of pages in the output document.
    echo "Page count: " . $client->getPageCount() . "\n";
    
    // print size of the output data in bytes.
    echo "Output size: " . $client->getOutputSize() . "\n";
}
catch(\Pdfcrowd\Error $why)
{
    error_log("PDFCrowd Error: {$why}");
    throw $why;
}

?>

PHP website examples

PDF file to PNG in PHP website

<?php
require 'pdfcrowd.php';

// The recommended method is POST.
if($_SERVER['REQUEST_METHOD'] == 'POST') {
    try {
        // Create an API client instance.
        $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

        // If unsure whether the input is a single-page file, enforce ZIP output.
        $client->setOutputFormat("png");
        $client->setForceZip(true);

        // Run the conversion.
        $png = $client->convertFile("/path/to/invoice.pdf");

        // Set HTTP response headers.
        header("Content-Type: image/png");
        header("Cache-Control: no-cache");
        header("Accept-Ranges: none");
        header("Content-Disposition: attachment; filename*=UTF-8''" . rawurlencode("invoice.zip"));

        echo $png;
    }
    catch(\Pdfcrowd\Error $why) {
        // Report the error.
        header("Content-Type: text/plain");
        http_response_code($why->getStatusCode());
        echo "PDFCrowd Error: {$why}";
    }
}

?>

PDF url to PNG in PHP website

<?php
require 'pdfcrowd.php';

// The recommended method is POST.
if($_SERVER['REQUEST_METHOD'] == 'POST') {
    try {
        // Create an API client instance.
        $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

        // If unsure whether the input is a single-page file, enforce ZIP output.
        $client->setOutputFormat("png");
        $client->setForceZip(true);

        // Run the conversion.
        $png = $client->convertUrl("https://pdfcrowd.com/static/pdf/apisamples/invoice.pdf");

        // Set HTTP response headers.
        header("Content-Type: image/png");
        header("Cache-Control: no-cache");
        header("Accept-Ranges: none");
        header("Content-Disposition: attachment; filename*=UTF-8''" . rawurlencode("invoice.zip"));

        echo $png;
    }
    catch(\Pdfcrowd\Error $why) {
        // Report the error.
        header("Content-Type: text/plain");
        http_response_code($why->getStatusCode());
        echo "PDFCrowd Error: {$why}";
    }
}

?>

In-memory PDF to PNG in PHP website

<?php
require 'pdfcrowd.php';

// The recommended method is POST.
if($_SERVER['REQUEST_METHOD'] == 'POST') {
    try {
        // Create an API client instance.
        $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

        // If unsure whether the input is a single-page file, enforce ZIP output.
        $client->setOutputFormat("png");
        $client->setForceZip(true);

        // Run the conversion.
        $png = $client->convertRawData(file_get_contents("/path/to/hello_world.pdf"));

        // Set HTTP response headers.
        header("Content-Type: image/png");
        header("Cache-Control: no-cache");
        header("Accept-Ranges: none");
        header("Content-Disposition: attachment; filename*=UTF-8''" . rawurlencode("invoice.zip"));

        echo $png;
    }
    catch(\Pdfcrowd\Error $why) {
        // Report the error.
        header("Content-Type: text/plain");
        http_response_code($why->getStatusCode());
        echo "PDFCrowd Error: {$why}";
    }
}

?>

Laravel examples

PDF file to PNG in Laravel

<?php

// The recommended method is POST.
Route::post('/', function () {
    try {
        // Create an API client instance.
        $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

        // If unsure whether the input is a single-page file, enforce ZIP output.
        $client->setOutputFormat("png");
        $client->setForceZip(true);

        // Run the conversion and store the result in the `png` variable.
        $png = $client->convertFile("/path/to/invoice.pdf");

        // Send the result and set HTTP response headers.
        return response($png)
            ->header("Content-Type", "image/png")
            ->header("Cache-Control", "no-cache")
            ->header("Accept-Ranges", "none")
            ->header("Content-Disposition",
                     "attachment; filename*=UTF-8''" . rawurlencode("invoice.zip"));
    }
    catch(\Pdfcrowd\Error $why) {
        // Send the error in the HTTP response.
        return response($why, $why->getStatusCode())
            ->header("Content-Type", "text/plain");
    }
});

?>

PDF url to PNG in Laravel

<?php

// The recommended method is POST.
Route::post('/', function () {
    try {
        // Create an API client instance.
        $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

        // If unsure whether the input is a single-page file, enforce ZIP output.
        $client->setOutputFormat("png");
        $client->setForceZip(true);

        // Run the conversion and store the result in the `png` variable.
        $png = $client->convertUrl("https://pdfcrowd.com/static/pdf/apisamples/invoice.pdf");

        // Send the result and set HTTP response headers.
        return response($png)
            ->header("Content-Type", "image/png")
            ->header("Cache-Control", "no-cache")
            ->header("Accept-Ranges", "none")
            ->header("Content-Disposition",
                     "attachment; filename*=UTF-8''" . rawurlencode("invoice.zip"));
    }
    catch(\Pdfcrowd\Error $why) {
        // Send the error in the HTTP response.
        return response($why, $why->getStatusCode())
            ->header("Content-Type", "text/plain");
    }
});

?>

In-memory PDF to PNG in Laravel

<?php

// The recommended method is POST.
Route::post('/', function () {
    try {
        // Create an API client instance.
        $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

        // If unsure whether the input is a single-page file, enforce ZIP output.
        $client->setOutputFormat("png");
        $client->setForceZip(true);

        // Run the conversion and store the result in the `png` variable.
        $png = $client->convertRawData(file_get_contents("/path/to/hello_world.pdf"));

        // Send the result and set HTTP response headers.
        return response($png)
            ->header("Content-Type", "image/png")
            ->header("Cache-Control", "no-cache")
            ->header("Accept-Ranges", "none")
            ->header("Content-Disposition",
                     "attachment; filename*=UTF-8''" . rawurlencode("invoice.zip"));
    }
    catch(\Pdfcrowd\Error $why) {
        // Send the error in the HTTP response.
        return response($why, $why->getStatusCode())
            ->header("Content-Type", "text/plain");
    }
});

?>

Symfony examples

PDF file to PNG in Symfony

<?php
namespace App\Controller;

use Symfony\Component\Routing\Attribute\Route;
use Symfony\Component\HttpFoundation\Response;

class DemoController
{
    // The recommended method is POST.
    #[Route('/', methods: ['POST'])]
    public function convert()
    {
        try {
            // Create an API client instance.
            $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

            // If unsure whether the input is a single-page file, enforce ZIP output.
            $client->setOutputFormat("png");
            $client->setForceZip(true);

            // Run the conversion and store the result in the `png` variable.
            $png = $client->convertFile("/path/to/invoice.pdf");

            // Send the result and set HTTP response headers.
            return new Response(
                $png,
                Response::HTTP_OK,
                ["Content-Type" => "image/png",
                 "Cache-Control" => "no-cache",
                 "Accept-Ranges" => "none",
                 "Content-Disposition" => "attachment; filename*=UTF-8''" . rawurlencode("invoice.zip")]);
        }
        catch(\Pdfcrowd\Error $why) {
            // Send the error in the HTTP response.
            return new Response($why,
                                $why->getStatusCode(),
                                ["Content-Type" => "text/plain"]);
        }
    }
}

PDF url to PNG in Symfony

<?php
namespace App\Controller;

use Symfony\Component\Routing\Attribute\Route;
use Symfony\Component\HttpFoundation\Response;

class DemoController
{
    // The recommended method is POST.
    #[Route('/', methods: ['POST'])]
    public function convert()
    {
        try {
            // Create an API client instance.
            $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

            // If unsure whether the input is a single-page file, enforce ZIP output.
            $client->setOutputFormat("png");
            $client->setForceZip(true);

            // Run the conversion and store the result in the `png` variable.
            $png = $client->convertUrl("https://pdfcrowd.com/static/pdf/apisamples/invoice.pdf");

            // Send the result and set HTTP response headers.
            return new Response(
                $png,
                Response::HTTP_OK,
                ["Content-Type" => "image/png",
                 "Cache-Control" => "no-cache",
                 "Accept-Ranges" => "none",
                 "Content-Disposition" => "attachment; filename*=UTF-8''" . rawurlencode("invoice.zip")]);
        }
        catch(\Pdfcrowd\Error $why) {
            // Send the error in the HTTP response.
            return new Response($why,
                                $why->getStatusCode(),
                                ["Content-Type" => "text/plain"]);
        }
    }
}

In-memory PDF to PNG in Symfony

<?php
namespace App\Controller;

use Symfony\Component\Routing\Attribute\Route;
use Symfony\Component\HttpFoundation\Response;

class DemoController
{
    // The recommended method is POST.
    #[Route('/', methods: ['POST'])]
    public function convert()
    {
        try {
            // Create an API client instance.
            $client = new \Pdfcrowd\PdfToImageClient("demo", "demo");

            // If unsure whether the input is a single-page file, enforce ZIP output.
            $client->setOutputFormat("png");
            $client->setForceZip(true);

            // Run the conversion and store the result in the `png` variable.
            $png = $client->convertRawData(file_get_contents("/path/to/hello_world.pdf"));

            // Send the result and set HTTP response headers.
            return new Response(
                $png,
                Response::HTTP_OK,
                ["Content-Type" => "image/png",
                 "Cache-Control" => "no-cache",
                 "Accept-Ranges" => "none",
                 "Content-Disposition" => "attachment; filename*=UTF-8''" . rawurlencode("invoice.zip")]);
        }
        catch(\Pdfcrowd\Error $why) {
            // Send the error in the HTTP response.
            return new Response($why,
                                $why->getStatusCode(),
                                ["Content-Type" => "text/plain"]);
        }
    }
}