您不能设置页边距与PDFsharp - 这是给你预留当你画的项目在页面上边距

您复制的代码是从MigraDoc。 MigraDoc附带PDFsharp，但工作在更高的层次，你不跟几页内容，而不是你处理的部分，在这里你可以设置页边距。

请参阅网站对于PDFsharp和MigraDoc进一步的信息：结果
http://pdfsharp.net/ 结果
有还展示了如何设置页面大小PDFsharp样本。

当您使用PDFsharp，你可以在任何地方在页面上绘制图像，你还可以指定的大小图像。

I am converting an image to pdf using PDFsharp lib. I need to set margin & page size so I got a trick from this forum to set page size and margin. From here I got code which I used but getting error for two area. Here is code which I got.

page = document.AddPage();
//page.Size = PdfSharp.PageSize.A4;
XSize size = PageSizeConverter.ToSize(PdfSharp.PageSize.A4);
if(page.Orientation == PageOrientation.Landscape)
{
   page.Width  = size.Height;
   page.Height = size.Width;
}
else
{
   page.Width  = size.Width;
   page.Height = size.Height;
}

// default unit in points 1 inch = 72 points
page.TrimMargins.Top = 5;
page.TrimMargins.Right = 5;
page.TrimMargins.Bottom = 5;
page.TrimMargins.Left = 5;

I got an error for this line

XSize size = PageSizeConverter.ToSize(PdfSharp.PageSize.A4);

so i need to change it to

System.Drawing.Size size = PageSizeConverter.ToSize(PdfSharp.PageSize.A4);

Now my program compiles but when I set margin then I am getting error called PdfSharp does not contain a definition for TrimMargins

these below line does not compile for setting margin.

    pdfPage.TrimMargins.Top = 5;
    pdfPage.TrimMargins.Right = 5;
    pdfPage.TrimMargins.Bottom = 5;
    pdfPage.TrimMargins.Left = 5;

I am using the pdf sharp library version 1.0.898.0

So guide me how can I set margin.

Here is my full code to generate pdf from image file

public static string GeneratePdfFromImage(string source)
        {
            string destinaton = source.Replace("gif", "pdf");
            PdfDocument doc = new PdfDocument();
            PdfPage pdfPage = new PdfPage();
            System.Drawing.Size size = PageSizeConverter.ToSize(PdfSharp.PageSize.A4);
            pdfPage.Orientation = PageOrientation.Portrait;

            pdfPage.Width = size.Width;
            pdfPage.Height = size.Height;
            pdfPage.TrimMargins.Top = 5;
            pdfPage.TrimMargins.Right = 5;
            pdfPage.TrimMargins.Bottom = 5;
            pdfPage.TrimMargins.Left = 5;

            doc.Pages.Add(pdfPage);

            XGraphics xgr = XGraphics.FromPdfPage(doc.Pages[0]);
            XImage img = XImage.FromFile(source);

            try
            {
                xgr.DrawImage(img, 0, 0);
                doc.Save(destinaton);
                doc.Close();
            }
            catch (Exception ex)
            {
                destinaton = "";
            }

            return destinaton;
        }

You cannot set margins with PDFsharp - it's up to you to reserve margins on the page when you draw items.

The code you copied is from MigraDoc. MigraDoc is included with PDFsharp, but works on a higher level where you do not deal with pages, instead you deal with sections and here you can set margins.

See the website for PDFsharp and MigraDoc for further information:
http://pdfsharp.net/
There also is a PDFsharp sample that shows how to set the page size.

When you use PDFsharp, you can draw images anywhere on the page and you also specify the size of the image.