Nomad changes

docs/snippets/elixir/ocr/image_preprocessing.md

@@ -0,0 +1,19 @@
+```elixir title="Elixir"
+config_json = Jason.encode!(%{
+  "ocr" => %{
+    "backend" => "tesseract",
+    "tesseract_config" => %{
+      "preprocessing" => %{
+        "target_dpi" => 300,
+        "denoise" => true,
+        "deskew" => true,
+        "contrast_enhance" => true,
+        "binarization_method" => "otsu"
+      }
+    }
+  }
+})
+
+{:ok, result} = Kreuzberg.extract_file_sync("scanned.pdf", "application/pdf", config_json)
+IO.puts(result.content)
+```