private void RegisterMissingPdfFontsBeforeExport()
{
CellRange usedCellRange = this.Worksheet.UsedCellRange;
for (int row = 0; row <= usedCellRange.ToIndex.RowIndex; row++)
{
for (int column = 0; column <= usedCellRange.ToIndex.ColumnIndex; column++)
{
CellSelection cell = this.Worksheet.Cells[new CellIndex(row, column)];
string fontFamilyName = cell.GetFontFamily().Value.GetActualValue(this.Worksheet.Workbook.Theme).ToString();
bool isItalic = cell.GetIsItalic().Value;
bool isBold = cell.GetIsBold().Value;
this.RegisterFont(fontFamilyName, isItalic, isBold);
}
}
}