N-Up pages, 2-Up Booklet : N-Up is shorthand for 2-up, 3-up,...

Mon, 21 Sep 2009 05:05:57 +0000

Author: Rowan
Subject: 1220
Posted: 21 Sep 09 at 5:05AM

N-Up is shorthand for 2-up, 3-up, 4-up etc, or basically: combining more than one different page together on the same sheet. The snippet of code below shows you how to combine two pages from a document onto one sheet in a new document. The sample doesn't include much error handling and has not been optimized as it is intended as a starting point only.

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private void btnBooklet_Click(object sender, EventArgs e)

{

QuickPDFAX0716.PDFLibrary QP = new QuickPDFAX0716.PDFLibrary();

int result = QP.UnlockKey("...Insert_License_Key_Here...");

if (result == 1)

{

// First, load the original document that you wish to use for this imposition test:

QP.LoadFromFile(@"C:\Program Files\Quick PDF Library\Quick PDF Library 7.16 Reference Guide.pdf");

// Then we get the number of pages in the original document:

int originalPageCount = QP.PageCount();

// Store the width and height of the pages from the original document:

double w = QP.PageWidth();

double h = QP.PageHeight();

// Use the CapturePage function to capture every page in the original document.

// Each captured page will be given a unique ID which can be used with the

// DrawCapturedPage function. Temporarily store these ID's in an array:

int[] capture = new int[originalPageCount];

int indexArray = 0;

for (int pageTest = 1; pageTest <= originalPageCount; pageTest++)

{

capture[indexArray] = QP.CapturePage(1);

indexArray++;

if (QP.PageCount() == 1)

{

// After a page has been captured it's removed from the document in memory,

// but we can't have a document with no pages, so a temporary page must be

// created until the imposed pages have been added to the document.

QP.NewPage();

}

int requiredPages = 0;

// Now calculate the required number of pages for the 2-up booklet:

if (originalPageCount == 1)

{

requiredPages = 1;

}

else

{

requiredPages = originalPageCount / 2;

}

// Add the required number of pages to the end of the document, using the NewPages function:

QP.NewPages(requiredPages);

int captureIndex = 0;

// Now loop through each new page in the document and draw the captured pages. Two captured

// pages will be drawn on each new page. The first captured page is drawn on the left, the

// second on the right, and then it moves on to the next new page and repeats the process:

for (int page = 1; page <= requiredPages + 1; page++)

{

QP.SelectPage(page);

QP.SetPageDimensions(w * 2, h);

for (int i = 0; i <= 0; i++)

{

if (i <= 1)

{

// Draw left

if (captureIndex != capture.Length)

{

QP.DrawCapturedPage(capture[captureIndex], 0, h, w, h);

QP.DrawText(100, 25, "Page: " + captureIndex);

captureIndex++;

}

// Draw right

if (captureIndex != capture.Length)

{

QP.DrawCapturedPage(capture[captureIndex], 560, h, w, h);

QP.DrawText(w, 25, "Page: " + captureIndex);

captureIndex++;

}

// Delete the extra page that was created when the original pages were captured

QP.DeletePages(QP.PageCount(), 1);

// Save the new 2-up booklet

QP.SaveToFile(@"C:\temp\Manual_Booklet.pdf");

}

else

{

MessageBox.Show("Sorry, but the license key you provided could not be validated.");

}

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N-Up pages, 2-Up Booklet : N-Up is shorthand for 2-up, 3-up,...