Add scratch file.

scratch.cs

@@ -0,0 +1,28 @@
+using System;
+using System.IO;
+using System.Linq;
+using QuestPDF.Fluent;
+using QuestPDF.Infrastructure;
+
+class Program
+{
+    static void Main(string[] args)
+    {
+        // Create a new PDF document
+        using (var stream = new MemoryStream())
+        {
+            var document = new Document(stream);
+
+            // Add each PDF document to the output document
+            for (int i = 1; i < args.Length; i++)
+            {
+                var inputDocument = new Document(new FileStream(args[i], FileMode.Open));
+                document.Append(inputDocument.GetContent());
+            }
+
+            // Save the output document
+            document.Save();
+            File.WriteAllBytes("merged.pdf", stream.ToArray());
+        }
+    }
+}