THPDFJSONValue.GetFloat

Reads an object member back as a floating-point number

function GetFloat(const Key: AnsiString; Def: Double = 0): Double;

The unit is HPDFDocJobs; the default comes back when the member is missing or is not a number

Every JSON number is stored as a double, so this accessor hands back the exact parsed value

GetInt and GetInt64 truncate that same field for integer consumers