Printing Issues


We do use the PDFTron’s PDFNet SDK to print PDFs. We are having issues with the printing where it is cutting off at the right and bottom margin. I have tried all possible solution that is out there on the site. I have pasted the code that we use currently. I would appreciate if anyone could help me identify what I am doing wrong.

static void PrintPage(object sender, PrintPageEventArgs ev)


Graphics gr = ev.Graphics;

gr.PageUnit = GraphicsUnit.Inch;

Rectangle rectPage = ev.PageBounds; //print without margins

//Rectangle rectPage = ev.MarginBounds; //print using margins

//RectangleF rectPage = GetBestRectangle(ev);

//Rectangle rectPage = GetRealPageBounds(ev, 2); //Option 1 or Option 2

float dpi = gr.DpiX;

if (dpi>300) dpi = 300;

double left, right, top, bottom;

left= rectPage.Left / 100.0;

right = rectPage.Right / 100.0;

top = rectPage.Top / 100.0;

bottom= rectPage.Bottom / 100.0;

LogUtil("rectPage.Left " + left.ToString(), verboseLogs);

LogUtil("rectPage.right " + right.ToString(), verboseLogs);

LogUtil(" " + top.ToString(), verboseLogs);

LogUtil("rectPage.bottom " + bottom.ToString(), verboseLogs);

// One page unit is 1/72 of an inch.

// For a ‘letter’ size page (8.5 x 11 inches) the dimensions will be:

// width = 612 units = 612 * 1/72 = 8.5 inches

// height = 792 units = 792 * 1/72 = 11 inches

// ============================================================

// The above page dimensions are in inches. We need to convert the page

// dimensions to PDF units (or points). One point is 1/72 of an inch.

var rect = new pdftron.PDF.Rect(left72, bottom72, right72, top72);




pdfdraw.DrawInRect(pageitr.Current(), gr, rect);


catch (Exception ex)


LogUtil("PDF printing Error: " + ex.ToString());


pageitr.Next(); // Move to the next page, if any

ev.HasMorePages = pageitr.HasNext();



Vinod Shenoy H.N.

Sr. Application Developer

Output Solutions


Direct: 314-387-2553

Cell: 314-363-3287

Fax: 314-387-2700


P Please consider the environment before printing this email.

The PDF format is actually device neutral, and is independent of a physical size.

To map from PDF space to a physical space, which is needed to render the PDF on a screen or printer, each page in the PDF document has a user space to translate. While it’s true that the default is 1/72 inch, this can be a different value (e.g. 1/96).

Perhaps the problem is that your source page has a different UserUnit (an optional key on a Page, see in PDF32000_2008).

Instead of using 72, try multiplying (or dividing) 72 by page.GetUserUnitSize().

You may also want to use ‘pdftron.PDF.Print.StartPrintJob()’ instead of PDFDraw. The use of this API is illustrated in PDFPrint sample:

If you need more control you can convert PDF to XPS (new Windows spool format) using pdftron.PDF.Convert.ToXps() and print the file using Microsoft XPS Print API (