Nomad changes

docs/snippets/kotlin/ocr/image_preprocessing.md

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+```kotlin title="Kotlin"
+import dev.kreuzberg.*
+import java.nio.file.Paths
+import java.util.Optional
+
+fun main() {
+    val images = ImageExtractionConfig.builder()
+        .withExtractImages(true)
+        .withTargetDpi(300)
+        .withMaxImageDimension(4096)
+        .build()
+
+    val config = ExtractionConfig.builder()
+        .withImages(Optional.of(images))
+        .build()
+
+    val result = Kreuzberg.extractFileSync(Paths.get("document.pdf"), null, config)
+    println("Extracted images: ${result.images()?.size ?: 0}")
+}
+```