diff --git a/backend/app/Controllers/ElementController.php b/backend/app/Controllers/ElementController.php
index 66edf8c..b6aae90 100644
--- a/backend/app/Controllers/ElementController.php
+++ b/backend/app/Controllers/ElementController.php
@@ -5,9 +5,11 @@ namespace App\Controllers;
 use App\Element\Element;
 use App\Element\UseCases\GetElement\GetElement;
 use App\Element\UseCases\GetElement\GetElementRequest;
+use App\Element\UseCases\UpdateElement\UpdateElement;
 use App\Element\UseCases\UpdateElement\UpdateElementIconImage;
 use App\Element\UseCases\UpdateElement\UpdateElementIconImageRequest;
-use App\Element\UseCases\UpdateElement\UpdateElement;
+use App\Element\UseCases\UpdateElement\UpdateElementPdf;
+use App\Element\UseCases\UpdateElement\UpdateElementPdfRequest;
 use App\Element\UseCases\UpdateElement\UpdateElementRequest;
 use App\Exceptions\BadRequestException;
 use App\Exceptions\NotFoundException;
@@ -22,6 +24,7 @@ class ElementController
         private GetElement $getElement,
         private UpdateElement $updateElement,
         private UpdateElementIconImage $updateElementIconImage,
+        private UpdateElementPdf $updateElementPdf,
         private FileUploader $fileUploader,
     ) {
     }
@@ -90,6 +93,35 @@ class ElementController
         ], 200);
     }
 
+    public function uploadPdf(?int $id, Request $request): JsonResponse
+    {
+        $pdf = $this->uploadedFileInput($request, 'pdf');
+
+        try {
+            $element = $this->updateElementPdf->execute(
+                new UpdateElementPdfRequest(
+                    id: $id,
+                    pdfContents: $pdf['contents'],
+                    pdfOriginalName: $pdf['originalName'],
+                    pdfMimeType: $pdf['mimeType'],
+                    pdfSizeBytes: $pdf['sizeBytes'],
+                )
+            );
+        } catch (BadRequestException $exception) {
+            return new JsonResponse([
+                'error' => $exception->getMessage(),
+            ], 400);
+        } catch (NotFoundException $exception) {
+            return new JsonResponse([
+                'error' => $exception->getMessage(),
+            ], 404);
+        }
+
+        return new JsonResponse([
+            'element' => $this->buildElementPayload($element),
+        ], 200);
+    }
+
     public function uploadIconImage(?int $id, Request $request): JsonResponse
     {
         $iconImage = $this->uploadedFileInput($request, 'iconImage');
@@ -190,7 +222,10 @@ class ElementController
                 'element-icons/',
             ),
             'richText' => $element->getRichText(),
-            'pdfPath' => $element->getPdfPath(),
+            'pdfPath' => $this->storageUrl(
+                $element->getPdfPath(),
+                'element-pdfs/',
+            ),
             'youtubeUrl' => $element->getYoutubeUrl(),
         ];
     }
diff --git a/backend/app/Element/UseCases/UpdateElement/UpdateElementPdf.php b/backend/app/Element/UseCases/UpdateElement/UpdateElementPdf.php
new file mode 100644
index 0000000..2f84fc8
--- /dev/null
+++ b/backend/app/Element/UseCases/UpdateElement/UpdateElementPdf.php
@@ -0,0 +1,75 @@
+<?php
+
+namespace App\Element\UseCases\UpdateElement;
+
+use App\Element\Element;
+use App\Element\ElementRepository;
+use App\Exceptions\BadRequestException;
+use App\Exceptions\NotFoundException;
+use App\Shared\Files\FileToUpload;
+use App\Shared\Files\FileUploader;
+
+class UpdateElementPdf
+{
+    private const ALLOWED_MIME_TYPES = [
+        'application/pdf',
+    ];
+
+    private const MAX_SIZE_BYTES = 10 * 1024 * 1024;
+
+    public function __construct(
+        private ElementRepository $elementRepository,
+        private FileUploader $fileUploader,
+    ) {
+    }
+
+    /**
+     * @throws BadRequestException
+     * @throws NotFoundException
+     */
+    public function execute(UpdateElementPdfRequest $request): Element
+    {
+        if ($request->id === null) {
+            throw new BadRequestException('id is required');
+        }
+
+        if (
+            $request->pdfContents === null
+            || $request->pdfOriginalName === null
+            || $request->pdfMimeType === null
+            || $request->pdfSizeBytes === null
+        ) {
+            throw new BadRequestException('pdf is required');
+        }
+
+        if (
+            ! in_array(
+                $request->pdfMimeType,
+                self::ALLOWED_MIME_TYPES,
+                true,
+            )
+        ) {
+            throw new BadRequestException('pdf must be a pdf file');
+        }
+
+        if ($request->pdfSizeBytes > self::MAX_SIZE_BYTES) {
+            throw new BadRequestException('pdf must be 10MB or smaller');
+        }
+
+        $element = $this->elementRepository->find($request->id);
+        if ($element === null) {
+            throw new NotFoundException('Element not found');
+        }
+
+        $pdf = new FileToUpload(
+            contents: $request->pdfContents,
+            originalName: $request->pdfOriginalName,
+            mimeType: $request->pdfMimeType,
+            sizeBytes: $request->pdfSizeBytes,
+        );
+        $path = $this->fileUploader->upload($pdf, 'element-pdfs');
+        $element->setPdfPath($path);
+
+        return $this->elementRepository->update($element);
+    }
+}
diff --git a/backend/app/Element/UseCases/UpdateElement/UpdateElementPdfRequest.php b/backend/app/Element/UseCases/UpdateElement/UpdateElementPdfRequest.php
new file mode 100644
index 0000000..7808083
--- /dev/null
+++ b/backend/app/Element/UseCases/UpdateElement/UpdateElementPdfRequest.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Element\UseCases\UpdateElement;
+
+class UpdateElementPdfRequest
+{
+    public function __construct(
+        public ?int $id,
+        public ?string $pdfContents,
+        public ?string $pdfOriginalName,
+        public ?string $pdfMimeType,
+        public ?int $pdfSizeBytes,
+    ) {
+    }
+}
diff --git a/backend/app/Shared/Files/LaravelFileUploader.php b/backend/app/Shared/Files/LaravelFileUploader.php
index fa29664..aca4434 100644
--- a/backend/app/Shared/Files/LaravelFileUploader.php
+++ b/backend/app/Shared/Files/LaravelFileUploader.php
@@ -26,6 +26,7 @@ class LaravelFileUploader implements FileUploader
             'image/jpeg' => '.jpg',
             'image/png' => '.png',
             'image/webp' => '.webp',
+            'application/pdf' => '.pdf',
         ];
         if (isset($mimeExtensions[$file->getMimeType()])) {
             return $mimeExtensions[$file->getMimeType()];
diff --git a/backend/routes/api.php b/backend/routes/api.php
index b864ae2..1ad6827 100644
--- a/backend/routes/api.php
+++ b/backend/routes/api.php
@@ -19,3 +19,8 @@ Route::post(
     [ElementController::class, 'uploadIconImage'],
 )
     ->middleware(AuthMiddleware::class);
+Route::post(
+    '/elements/{id}/pdf',
+    [ElementController::class, 'uploadPdf'],
+)
+    ->middleware(AuthMiddleware::class);