diff --git a/test/example.php b/test/example.php
new file mode 100644
index 0000000..2a5c6c2
--- /dev/null
+++ b/test/example.php
@@ -0,0 +1,10 @@
+<?php
+  $ch = curl_init("http://localhost:9021/watermark");
+  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+  curl_setopt($ch, CURLOPT_POST, 1);
+  curl_setopt($ch, CURLOPT_POSTFIELDS, [
+      'watermark' =>  new \CurlFile(__DIR__.'/watermark.pdf','application/pdf','watermark.pdf'),
+      'pdf-to-watermark' =>  new \CurlFile(__DIR__.'/pdf-to-watermark.pdf','application/pdf','pdf-to-watermark.pdf')
+  ]);
+  $result = curl_exec($ch);
+  file_put_contents("watermarked.pdf", $result);
diff --git a/test/example.sh b/test/example.sh
new file mode 100755
index 0000000..7ac1251
--- /dev/null
+++ b/test/example.sh
@@ -0,0 +1 @@
+curl -F "watermark=@watermark.pdf" -F "pdf-to-watermark=@pdf-to-watermark.pdf" http://localhost:9021/watermark > watermarked.pdf
diff --git a/test/pdf-to-watermark.pdf b/test/pdf-to-watermark.pdf
new file mode 100644
index 0000000..a57569d
Binary files /dev/null and b/test/pdf-to-watermark.pdf differ
diff --git a/test/watermark.pdf b/test/watermark.pdf
new file mode 100644
index 0000000..0ed9f07
Binary files /dev/null and b/test/watermark.pdf differ