N-Up pages, 2-Up Booklet

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   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.

-------------
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.");
}
}
-------------

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
Rowan Members Profile Find Members Posts Moderator Group Joined: 10 Jan 09 Status: Offline Points: 398	Post Options Post Reply Quote Rowan Report Post Thanks(1) Quote Reply Topic: N-Up pages, 2-Up Booklet 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. ------------- 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."); } } -------------