diff --git a/config/builder_pdf.php b/config/builder_pdf.php
index b80f9a42..c838458b 100644
--- a/config/builder_pdf.php
+++ b/config/builder_pdf.php
@@ -3,6 +3,7 @@
 use Sensiolabs\GotenbergBundle\Builder\Pdf\HtmlPdfBuilder;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\LibreOfficePdfBuilder;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\MarkdownPdfBuilder;
+use Sensiolabs\GotenbergBundle\Builder\Pdf\MergePdfBuilder;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\UrlPdfBuilder;
 use Symfony\Component\DependencyInjection\Loader\Configurator\ContainerConfigurator;
 use function Symfony\Component\DependencyInjection\Loader\Configurator\service;
@@ -58,4 +59,14 @@
         ->call('setLogger', [service('logger')->nullOnInvalid()])
         ->tag('sensiolabs_gotenberg.pdf_builder')
     ;
+
+    $services->set('.sensiolabs_gotenberg.pdf_builder.merge', MergePdfBuilder::class)
+        ->share(false)
+        ->args([
+            service('sensiolabs_gotenberg.client'),
+            service('sensiolabs_gotenberg.asset.base_dir_formatter'),
+        ])
+        ->call('setLogger', [service('logger')->nullOnInvalid()])
+        ->tag('sensiolabs_gotenberg.pdf_builder')
+    ;
 };
diff --git a/src/Builder/Pdf/MergePdfBuilder.php b/src/Builder/Pdf/MergePdfBuilder.php
new file mode 100644
index 00000000..070c93d4
--- /dev/null
+++ b/src/Builder/Pdf/MergePdfBuilder.php
@@ -0,0 +1,113 @@
+<?php
+
+namespace Sensiolabs\GotenbergBundle\Builder\Pdf;
+
+use Sensiolabs\GotenbergBundle\Enumeration\PdfFormat;
+use Sensiolabs\GotenbergBundle\Exception\InvalidBuilderConfiguration;
+use Sensiolabs\GotenbergBundle\Exception\MissingRequiredFieldException;
+use Symfony\Component\Mime\Part\DataPart;
+use Symfony\Component\Mime\Part\File as DataPartFile;
+
+final class MergePdfBuilder extends AbstractPdfBuilder
+{
+    private const ENDPOINT = '/forms/pdfengines/merge';
+
+    /**
+     * To set configurations by an array of configurations.
+     *
+     * @param array<string, mixed> $configurations
+     */
+    public function setConfigurations(array $configurations): self
+    {
+        foreach ($configurations as $property => $value) {
+            $this->addConfiguration($property, $value);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Convert the resulting PDF into the given PDF/A format.
+     */
+    public function pdfFormat(PdfFormat $format): self
+    {
+        $this->formFields['pdfa'] = $format->value;
+
+        return $this;
+    }
+
+    /**
+     * Enable PDF for Universal Access for optimal accessibility.
+     */
+    public function pdfUniversalAccess(bool $bool = true): self
+    {
+        $this->formFields['pdfua'] = $bool;
+
+        return $this;
+    }
+
+    public function files(string ...$paths): self
+    {
+        $this->formFields['files'] = [];
+
+        foreach ($paths as $path) {
+            $this->assertFileExtension($path, ['pdf']);
+
+            $dataPart = new DataPart(new DataPartFile($this->asset->resolve($path)));
+
+            $this->formFields['files'][$path] = $dataPart;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Resets the metadata.
+     *
+     * @see https://gotenberg.dev/docs/routes#metadata-chromium
+     * @see https://exiftool.org/TagNames/XMP.html#pdf
+     *
+     * @param array<string, mixed> $metadata
+     */
+    public function metadata(array $metadata): static
+    {
+        $this->formFields['metadata'] = $metadata;
+
+        return $this;
+    }
+
+    /**
+     * The metadata to write.
+     */
+    public function addMetadata(string $key, string $value): static
+    {
+        $this->formFields['metadata'] ??= [];
+        $this->formFields['metadata'][$key] = $value;
+
+        return $this;
+    }
+
+    public function getMultipartFormData(): array
+    {
+        if ([] === ($this->formFields['files'] ?? [])) {
+            throw new MissingRequiredFieldException('At least one PDF file is required');
+        }
+
+        return parent::getMultipartFormData();
+    }
+
+    protected function getEndpoint(): string
+    {
+        return self::ENDPOINT;
+    }
+
+    private function addConfiguration(string $configurationName, mixed $value): void
+    {
+        match ($configurationName) {
+            'pdf_format' => $this->pdfFormat(PdfFormat::from($value)),
+            'pdf_universal_access' => $this->pdfUniversalAccess($value),
+            'metadata' => $this->metadata($value),
+            default => throw new InvalidBuilderConfiguration(sprintf('Invalid option "%s": no method does not exist in class "%s" to configured it.', $configurationName, self::class)),
+        };
+    }
+}
diff --git a/src/Debug/TraceableGotenbergPdf.php b/src/Debug/TraceableGotenbergPdf.php
index c26a31fc..86eb91f1 100644
--- a/src/Debug/TraceableGotenbergPdf.php
+++ b/src/Debug/TraceableGotenbergPdf.php
@@ -5,6 +5,7 @@
 use Sensiolabs\GotenbergBundle\Builder\Pdf\HtmlPdfBuilder;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\LibreOfficePdfBuilder;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\MarkdownPdfBuilder;
+use Sensiolabs\GotenbergBundle\Builder\Pdf\MergePdfBuilder;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\PdfBuilderInterface;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\UrlPdfBuilder;
 use Sensiolabs\GotenbergBundle\Debug\Builder\TraceablePdfBuilder;
@@ -103,6 +104,23 @@ public function markdown(): PdfBuilderInterface
         return $traceableBuilder;
     }
 
+    /**
+     * @return MergePdfBuilder|TraceablePdfBuilder
+     */
+    public function merge(): PdfBuilderInterface
+    {
+        /** @var MergePdfBuilder|TraceablePdfBuilder $traceableBuilder */
+        $traceableBuilder = $this->inner->merge();
+
+        if (!$traceableBuilder instanceof TraceablePdfBuilder) {
+            return $traceableBuilder;
+        }
+
+        $this->builders[] = ['merge', $traceableBuilder];
+
+        return $traceableBuilder;
+    }
+
     /**
      * @return list<array{string, TraceablePdfBuilder}>
      */
diff --git a/src/DependencyInjection/Configuration.php b/src/DependencyInjection/Configuration.php
index fc9baa6e..d23d9865 100644
--- a/src/DependencyInjection/Configuration.php
+++ b/src/DependencyInjection/Configuration.php
@@ -48,6 +48,7 @@ public function getConfigTreeBuilder(): TreeBuilder
                             ->append($this->addPdfUrlNode())
                             ->append($this->addPdfMarkdownNode())
                             ->append($this->addPdfOfficeNode())
+                            ->append($this->addPdfMergeNode())
                         ->end()
                         ->arrayNode('screenshot')
                             ->addDefaultsIfNotSet()
@@ -487,6 +488,35 @@ private function addPdfOfficeNode(): NodeDefinition
         ;
     }
 
+    private function addPdfMergeNode(): NodeDefinition
+    {
+        $treeBuilder = new TreeBuilder('merge');
+        $this->addPdfFormat($treeBuilder->getRootNode());
+        $treeBuilder->getRootNode()
+            ->append($this->addPdfMetadata())
+        ->end();
+
+        return $treeBuilder->getRootNode();
+    }
+
+    private function addPdfFormat(ArrayNodeDefinition $parent): void
+    {
+        $parent
+            ->addDefaultsIfNotSet()
+            ->children()
+                ->enumNode('pdf_format')
+                    ->info('Convert PDF into the given PDF/A format - default None.')
+                    ->values(array_map(static fn (PdfFormat $case): string => $case->value, PdfFormat::cases()))
+                    ->defaultNull()
+                ->end()
+                ->booleanNode('pdf_universal_access')
+                    ->info('Enable PDF for Universal Access for optimal accessibility - default false.')
+                    ->defaultNull()
+                ->end()
+            ->end()
+        ;
+    }
+
     private function addPdfMetadata(): NodeDefinition
     {
         $treeBuilder = new TreeBuilder('metadata');
diff --git a/src/DependencyInjection/SensiolabsGotenbergExtension.php b/src/DependencyInjection/SensiolabsGotenbergExtension.php
index 1b5c3dd0..953edafb 100644
--- a/src/DependencyInjection/SensiolabsGotenbergExtension.php
+++ b/src/DependencyInjection/SensiolabsGotenbergExtension.php
@@ -18,7 +18,7 @@ public function load(array $configs, ContainerBuilder $container): void
     {
         $configuration = new Configuration();
 
-        /** @var array{base_uri: string, http_client: string|null, request_context?: array{base_uri?: string}, assets_directory: string, default_options: array{pdf: array{html: array<string, mixed>, url: array<string, mixed>, markdown: array<string, mixed>, office: array<string, mixed>}, screenshot: array{html: array<string, mixed>, url: array<string, mixed>, markdown: array<string, mixed>}}} $config */
+        /** @var array{base_uri: string, http_client: string|null, request_context?: array{base_uri?: string}, assets_directory: string, default_options: array{pdf: array{html: array<string, mixed>, url: array<string, mixed>, markdown: array<string, mixed>, office: array<string, mixed>, merge: array<string, mixed>}, screenshot: array{html: array<string, mixed>, url: array<string, mixed>, markdown: array<string, mixed>}}} $config */
         $config = $this->processConfiguration($configuration, $configs);
 
         $loader = new PhpFileLoader($container, new FileLocator(__DIR__.'/../../config'));
@@ -34,6 +34,7 @@ public function load(array $configs, ContainerBuilder $container): void
                     'url' => $this->cleanUserOptions($config['default_options']['pdf']['url']),
                     'markdown' => $this->cleanUserOptions($config['default_options']['pdf']['markdown']),
                     'office' => $this->cleanUserOptions($config['default_options']['pdf']['office']),
+                    'merge' => $this->cleanUserOptions($config['default_options']['pdf']['merge']),
                 ])
             ;
         }
@@ -73,6 +74,9 @@ public function load(array $configs, ContainerBuilder $container): void
         $definition = $container->getDefinition('.sensiolabs_gotenberg.pdf_builder.office');
         $definition->addMethodCall('setConfigurations', [$this->cleanUserOptions($config['default_options']['pdf']['office'])]);
 
+        $definition = $container->getDefinition('.sensiolabs_gotenberg.pdf_builder.merge');
+        $definition->addMethodCall('setConfigurations', [$this->cleanUserOptions($config['default_options']['pdf']['merge'])]);
+
         $definition = $container->getDefinition('.sensiolabs_gotenberg.screenshot_builder.html');
         $definition->addMethodCall('setConfigurations', [$this->cleanUserOptions($config['default_options']['screenshot']['html'])]);
 
diff --git a/src/GotenbergPdf.php b/src/GotenbergPdf.php
index fd5f829b..4d9b1d31 100644
--- a/src/GotenbergPdf.php
+++ b/src/GotenbergPdf.php
@@ -22,12 +22,13 @@ public function get(string $builder): PdfBuilderInterface
     }
 
     /**
-     * @param 'html'|'url'|'markdown'|'office' $key
+     * @param 'html'|'url'|'markdown'|'office'|'merge' $key
      *
      * @return ($key is 'html' ? HtmlPdfBuilder :
      *         $key is 'url' ? UrlPdfBuilder :
      *         $key is 'markdown' ? MarkdownPdfBuilder :
      *         $key is 'office' ? LibreOfficePdfBuilder :
+     *         $key is 'merge' ? MergePdfBuilder :
      *         PdfBuilderInterface)
      * )
      */
@@ -55,4 +56,9 @@ public function markdown(): PdfBuilderInterface
     {
         return $this->getInternal('markdown');
     }
+
+    public function merge(): PdfBuilderInterface
+    {
+        return $this->getInternal('merge');
+    }
 }
diff --git a/src/GotenbergPdfInterface.php b/src/GotenbergPdfInterface.php
index b7916f23..7285d3b6 100644
--- a/src/GotenbergPdfInterface.php
+++ b/src/GotenbergPdfInterface.php
@@ -5,6 +5,7 @@
 use Sensiolabs\GotenbergBundle\Builder\Pdf\HtmlPdfBuilder;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\LibreOfficePdfBuilder;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\MarkdownPdfBuilder;
+use Sensiolabs\GotenbergBundle\Builder\Pdf\MergePdfBuilder;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\PdfBuilderInterface;
 use Sensiolabs\GotenbergBundle\Builder\Pdf\UrlPdfBuilder;
 
@@ -38,4 +39,9 @@ public function office(): PdfBuilderInterface;
      * @return MarkdownPdfBuilder
      */
     public function markdown(): PdfBuilderInterface;
+
+    /**
+     * @return MergePdfBuilder
+     */
+    public function merge(): PdfBuilderInterface;
 }
diff --git a/tests/Builder/Pdf/MergePdfBuilderTest.php b/tests/Builder/Pdf/MergePdfBuilderTest.php
new file mode 100644
index 00000000..f373208a
--- /dev/null
+++ b/tests/Builder/Pdf/MergePdfBuilderTest.php
@@ -0,0 +1,87 @@
+<?php
+
+namespace Sensiolabs\GotenbergBundle\Tests\Builder\Pdf;
+
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\UsesClass;
+use Sensiolabs\GotenbergBundle\Builder\Pdf\AbstractPdfBuilder;
+use Sensiolabs\GotenbergBundle\Builder\Pdf\MergePdfBuilder;
+use Sensiolabs\GotenbergBundle\Exception\MissingRequiredFieldException;
+use Sensiolabs\GotenbergBundle\Formatter\AssetBaseDirFormatter;
+use Sensiolabs\GotenbergBundle\Tests\Builder\AbstractBuilderTestCase;
+
+#[CoversClass(MergePdfBuilder::class)]
+#[UsesClass(AbstractPdfBuilder::class)]
+#[UsesClass(AssetBaseDirFormatter::class)]
+final class MergePdfBuilderTest extends AbstractBuilderTestCase
+{
+    private const PDF_DOCUMENTS_DIR = 'pdf';
+
+    public function testEndpointIsCorrect(): void
+    {
+        $this->gotenbergClient
+            ->expects($this->once())
+            ->method('call')
+            ->with(
+                $this->equalTo('/forms/pdfengines/merge'),
+                $this->anything(),
+                $this->anything(),
+            )
+        ;
+
+        $this->getMergePdfBuilder()
+            ->files(
+                self::PDF_DOCUMENTS_DIR.'/simple_pdf.pdf',
+                self::PDF_DOCUMENTS_DIR.'/simple_pdf_1.pdf',
+            )
+            ->generate()
+        ;
+    }
+
+    public static function configurationIsCorrectlySetProvider(): \Generator
+    {
+        yield 'pdf_format' => ['pdf_format', 'PDF/A-1b', [
+            'pdfa' => 'PDF/A-1b',
+        ]];
+        yield 'pdf_universal_access' => ['pdf_universal_access', false, [
+            'pdfua' => 'false',
+        ]];
+        yield 'metadata' => ['metadata', ['Author' => 'SensioLabs'], [
+            'metadata' => '{"Author":"SensioLabs"}',
+        ]];
+    }
+
+    /**
+     * @param array<mixed> $expected
+     */
+    #[DataProvider('configurationIsCorrectlySetProvider')]
+    public function testConfigurationIsCorrectlySet(string $key, mixed $value, array $expected): void
+    {
+        $builder = $this->getMergePdfBuilder();
+        $builder->setConfigurations([
+            $key => $value,
+        ]);
+        $builder->files(
+            self::PDF_DOCUMENTS_DIR.'/simple_pdf.pdf',
+            self::PDF_DOCUMENTS_DIR.'/simple_pdf_1.pdf',
+        );
+
+        self::assertEquals($expected, $builder->getMultipartFormData()[0]);
+    }
+
+    public function testRequiredFormData(): void
+    {
+        $builder = $this->getMergePdfBuilder();
+
+        $this->expectException(MissingRequiredFieldException::class);
+        $this->expectExceptionMessage('At least one PDF file is required');
+
+        $builder->getMultipartFormData();
+    }
+
+    private function getMergePdfBuilder(): MergePdfBuilder
+    {
+        return new MergePdfBuilder($this->gotenbergClient, self::$assetBaseDirFormatter);
+    }
+}
diff --git a/tests/DependencyInjection/ConfigurationTest.php b/tests/DependencyInjection/ConfigurationTest.php
index 55555d33..cfe12fa0 100644
--- a/tests/DependencyInjection/ConfigurationTest.php
+++ b/tests/DependencyInjection/ConfigurationTest.php
@@ -74,6 +74,7 @@ public function testWithExtraHeadersConfiguration(): void
      *              'url': array<string, mixed>,
      *              'markdown': array<string, mixed>,
      *              'office': array<string, mixed>,
+     *              'merge': array<string, mixed>,
      *          }
      *     }
      * }
@@ -170,6 +171,10 @@ private static function getBundleDefaultConfig(): array
                         'pdf_format' => null,
                         'pdf_universal_access' => null,
                     ],
+                    'merge' => [
+                        'pdf_format' => null,
+                        'pdf_universal_access' => null,
+                    ],
                 ],
                 'screenshot' => [
                     'html' => [
diff --git a/tests/DependencyInjection/SensiolabsGotenbergExtensionTest.php b/tests/DependencyInjection/SensiolabsGotenbergExtensionTest.php
index ec5b5bf8..5959ccb1 100644
--- a/tests/DependencyInjection/SensiolabsGotenbergExtensionTest.php
+++ b/tests/DependencyInjection/SensiolabsGotenbergExtensionTest.php
@@ -118,6 +118,10 @@ public function testGotenbergConfiguredWithValidConfig(): void
                     'pdf_format' => 'PDF/A-1b',
                     'pdf_universal_access' => true,
                 ],
+                'merge' => [
+                    'pdf_format' => 'PDF/A-3b',
+                    'pdf_universal_access' => true,
+                ],
             ],
             'screenshot' => [
                 'html' => [
@@ -338,6 +342,11 @@ public function testDataCollectorIsProperlyConfiguredIfEnabled(): void
                             'Author' => 'SensioLabs OFFICE',
                         ],
                     ],
+                    'merge' => [
+                        'metadata' => [
+                            'Author' => 'SensioLabs MERGE',
+                        ],
+                    ],
                 ],
             ],
         ]], $containerBuilder);
@@ -367,6 +376,11 @@ public function testDataCollectorIsProperlyConfiguredIfEnabled(): void
                     'Author' => 'SensioLabs OFFICE',
                 ],
             ],
+            'merge' => [
+                'metadata' => [
+                    'Author' => 'SensioLabs MERGE',
+                ],
+            ],
         ], $dataCollectorOptions);
     }
 
@@ -379,6 +393,7 @@ public function testDataCollectorIsProperlyConfiguredIfEnabled(): void
      *                  'url': array<string, mixed>,
      *                  'markdown': array<string, mixed>,
      *                  'office': array<string, mixed>,
+     *                  'merge': array<string, mixed>,
      *              },
      *              'screenshot': array{
      *                  'html': array<string, mixed>,
@@ -479,6 +494,10 @@ private static function getValidConfig(): array
                             'pdf_format' => PdfFormat::Pdf1b->value,
                             'pdf_universal_access' => true,
                         ],
+                        'merge' => [
+                            'pdf_format' => PdfFormat::Pdf3b->value,
+                            'pdf_universal_access' => true,
+                        ],
                     ],
                     'screenshot' => [
                         'html' => [
diff --git a/tests/Fixtures/pdf/simple_pdf_1.pdf b/tests/Fixtures/pdf/simple_pdf_1.pdf
new file mode 100644
index 00000000..3de77499
Binary files /dev/null and b/tests/Fixtures/pdf/simple_pdf_1.pdf differ