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docs/snippets/zig/api/extract_bytes_async.md

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+<!-- snippet:syntax-only -->
+
+```zig title="Zig"
+const std = @import("std");
+const kreuzberg = @import("kreuzberg");
+
+// Note: the Zig binding is sync-only. There is no `extract_bytes` async variant —
+// the FFI surface exposes blocking entry points that internally drive the global
+// Tokio runtime. Use `extract_bytes_sync` from any thread.
+pub fn main() !void {
+    var gpa = std.heap.GeneralPurposeAllocator(.{}){};
+    defer _ = gpa.deinit();
+    const allocator = gpa.allocator();
+
+    const content = try std.fs.cwd().readFileAlloc(allocator, "document.pdf", 64 * 1024 * 1024);
+    defer allocator.free(content);
+
+    const config_json = "{}";
+    const result_json = try kreuzberg.extract_bytes_sync(content, "application/pdf", config_json);
+    defer std.heap.c_allocator.free(result_json);
+
+    const stdout = std.io.getStdOut().writer();
+    try stdout.print("{s}\n", .{result_json});
+}
+```