{
  "engine": "PyMuPDF actual get_text on saved PDFs",
  "rows": [
    [
      "Lin Demo",
      "Lin Demo",
      "Lin Demo",
      "未检出"
    ],
    [
      "13800000000",
      "13800000000",
      "13800000000",
      "未检出"
    ],
    [
      "1 Example Road",
      "1 Example Road",
      "1 Example Road",
      "未检出"
    ],
    [
      "DEMO-42",
      "DEMO-42",
      "DEMO-42",
      "DEMO-42"
    ],
    [
      "2026-10-28",
      "2026-10-28",
      "2026-10-28",
      "2026-10-28"
    ]
  ],
  "columns": [
    "检查文字",
    "原始PDF",
    "只盖黑框",
    "真正移除"
  ]
}