Ground truth for scan-no-text.pdf (YYSI synthetic demo, 2026-11-11).
This file has NO text layer at all — both pages are photos of text.
Extraction without OCR must return nothing; only OCR can recover the words.

=== Page 1 (English memo) ===
MEMO — Vehicle handover
Date: 3 October 2026
Vehicle: demo van, plate DEMO-001
Deposit received: 1,200.00 CNY
Fuel level: full tank
Keys and documents handed to the driver.
Next service due at 10,000 km.

=== Page 2 (Chinese notice) ===
通知
车辆交接确认（演示数据）
日期：2026年10月3日
押金已收到：1,200.00 元
油量：满箱
钥匙与随车文件已交付司机。
下次保养里程：10,000 公里。