PdfExcelElementFitWideContentToPage Property

True to scale down the content as much as needed to show entirely an element wider than the content area, such as a picture, which also makes the rest of the content smaller; false to keep the content at its size, with the part beyond the right edge of the content area cut off. The worksheets take the width of the content area, so the option matters only for such elements. The default is true

public bool FitWideContentToPage { get; set; }