Anyone familiar with this scripted pdf transformation tool?

{
  "Unit": "Millimeters",
  "Pages": [
    {
      "PageNumber": 1,
      "Width": 400,
      "Height": 100,
      "Instructions": [
        {
          "Type": "DrawPdfPlaceholder",
          "Name": "AmendmentA",
          "PageNumber": 1,
          "Position": {
            "X": 200,
            "Y": 50
          }
        },
        {
          "Type": "PushState"
        },
        {
          "Type": "RotateTransform",
          "CenterX": 90,
          "CenterY": 50,
          "Angle": 90
        },
        {
          "Type": "DrawPdfPlaceholder",
          "Name": "PrepressOutput",
          "PageNumber": 1,
          "Position": {
            "X": 90,
            "Y": 50
          }
        },
        {
          "Type": "PopState"
        },
        {
          "Type": "PushState"
        },
        {
          "Type": "RotateTransform",
          "CenterX": 310,
          "CenterY": 50,
          "Angle": 270
        },
        {
          "Type": "DrawPdfPlaceholder",
          "Name": "Prepress",
          "PageNumber": 2,
          "Position": {
            "X": 310,
            "Y": 50
          }
        },
        {
          "Type": "PopState"
        }
      ]
    }
  ]
}