Printing Issues

Technical Support Apryse SDK
1

Hi,

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("rectPage.top " + 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);

try

{

pdfdraw.SetDPI(dpi);

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();

}

Thanks,

Vinod Shenoy H.N.

Sr. Application Developer

Output Solutions

Fiserv

Direct: 314-387-2553

Cell: 314-363-3287

Fax: 314-387-2700

Email: vinod.shenoy@fiserv.com

P Please consider the environment before printing this email.

2

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 7.7.3.3 in PDF32000_2008).

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

3

You may also want to use ‘pdftron.PDF.Print.StartPrintJob()’ instead of PDFDraw. The use of this API is illustrated in PDFPrint sample:
http://www.pdftron.com/pdfnet/samplecode.html#PDFPrint

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 (http://msdn.microsoft.com/en-us/library/windows/desktop/ff686814(v=vs.85).aspx).