c# - itextsharp を使用して PDF で同様の画像サイズを維持する

Question

itextsharp を使用して、写真を PDF ファイルに取り込みます。チャンクを使用しています。ただし、チャンクの新しい行を使用すると、同じscaletofitを入れても画像のサイズが変わります。

protected void btnPDF_Click(object sender, EventArgs e)
    {

        var doc1 = new Document();
        var filename = "MyTestPDF" + DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".pdf";
        var output = new FileStream(Path.Combine("C:\\Users\\apr13mpsip\\Downloads", filename), FileMode.Create);
        iTextSharp.text.pdf.PdfWriter.GetInstance(doc1, output);
        doc1.Open();


        PdfPTable table = new PdfPTable(1);

        table.TotalWidth = 585f;
        table.LockedWidth = true;


        PdfPTable table2 = new PdfPTable(1);
        table2.TotalWidth = 585f;
        table2.LockedWidth = true;

        iTextSharp.text.pdf.PdfPCell imgCell1 = new iTextSharp.text.pdf.PdfPCell();

        var logo = iTextSharp.text.Image.GetInstance(Server.MapPath("~/image/logo.jpg"));
        doc1.Add(logo);

        var titleFont = FontFactory.GetFont("Arial", 15, Font.BOLD);
        doc1.Add(new Paragraph("Official Report. Member Report ID : " + DDLCase.SelectedValue, titleFont));

        var normalFont = FontFactory.GetFont(FontFactory.HELVETICA, 14, Font.BOLD);
        var phrase = new Phrase();
        var phrase2 = new Phrase();

        SqlConnection con = new SqlConnection("Data Source = localhost; Initial Catalog = project; Integrated Security = SSPI");

        SqlCommand cm = new SqlCommand("Select lro.fullname, lro.contact, mr.typeofcrime, mr.location,mr.crdatetime, mr.citizenreport, pr.policeid,  pr.prdatetime, pr.policereport, aor.officialreport,  mr.image1, mr.image2, mr.image3, mr.image4, mr.image5,  pr.image1, pr.image2, pr.image3, pr.image4, pr.image5 from MemberReport mr, PoliceReport pr, LoginRegisterOthers lro, AdminOfficialReport aor where mr.memberreportid = '" + DDLCase.SelectedValue + "' and mr.memberreportid=pr.memberreportid and pr.policereportid=aor.policereportid", con);
        con.Open();
        SqlDataReader dr;

        dr = cm.ExecuteReader();

        if (dr.Read())
        {


            phrase2.Add(new Chunk("Citizen Images :", normalFont));

            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);

            phrase2.Add(new Chunk("1.", normalFont));
            Byte[] bytes1 = (Byte[])dr[10];
            iTextSharp.text.Image image1 = iTextSharp.text.Image.GetInstance(bytes1);
            image1.ScaleToFit(750f, 750f);
            Chunk imageChunk1 = new Chunk(image1, 0, -30);
            phrase2.Add(imageChunk1);

            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);


            phrase2.Add(new Chunk("2.", normalFont));
            Byte[] bytes5 = (Byte[])dr[11];
            iTextSharp.text.Image image5 = iTextSharp.text.Image.GetInstance(bytes5);
            image5.ScaleToFit(750f, 750f);
            Chunk imageChunk5 = new Chunk(image5, 0, -30);
            phrase2.Add(imageChunk5);

            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);

            phrase2.Add(new Chunk("3.", normalFont));
            Byte[] bytes6 = (Byte[])dr[12];
            iTextSharp.text.Image image6 = iTextSharp.text.Image.GetInstance(bytes6);
            image6.ScaleToFit(750f, 750f);
            Chunk imageChunk6 = new Chunk(image6, 0, -30);
            phrase2.Add(imageChunk6);

            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);


            phrase2.Add(new Chunk("4.", normalFont));
            Byte[] bytes7 = (Byte[])dr[13];
            iTextSharp.text.Image image7 = iTextSharp.text.Image.GetInstance(bytes7);
            image7.ScaleToFit(750f, 750f);
            Chunk imageChunk7 = new Chunk(image7, 0, -30);
            phrase2.Add(imageChunk7);

            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);

            phrase2.Add(new Chunk("5.", normalFont));
            Byte[] bytes8 = (Byte[])dr[14];
            iTextSharp.text.Image image8 = iTextSharp.text.Image.GetInstance(bytes8);
            image8.ScaleToFit(750f, 750f);
            Chunk imageChunk8 = new Chunk(image8, 0, -30);
            phrase2.Add(imageChunk8);

            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);
            phrase2.Add(Chunk.NEWLINE);


            table2.AddCell(phrase2);

        }

        dr.Close();
        doc1.Add(table);
        doc1.NewPage();
        doc1.Add(table2);
        doc1.Close();
    }


}