```typescript title="WASM"
import init, { extractBytes } from "kreuzberg-wasm";

await init();

const fileInput = document.getElementById("file") as HTMLInputElement;
const file = fileInput.files?.[0];
if (file) {
  const bytes = new Uint8Array(await file.arrayBuffer());
  const result = await extractBytes(bytes, file.type || "application/pdf", undefined);
  console.log(`Content length: ${result.content.length} characters`);
  console.log(`Tables: ${result.tables?.length ?? 0}`);
}
```