Table of Contents

Class PdfAnnotation.PdfImportedLink

Namespace
iTextSharp.text.pdf
Assembly
iTextSharp.LGPLv2.Core.dll

This class processes links from imported pages so that they may be active. The following example code reads a group of files and places them all on the output PDF, four pages in a single page, keeping the links active. String[] files = new String[] {"input1.pdf", "input2.pdf"}; String outputFile = "output.pdf"; int firstPage=1; Document document = new Document(); PdfWriter writer = PdfWriter.GetInstance(document, new FileOutputStream(outputFile)); document.SetPageSize(PageSize.A4); float W = PageSize.A4.GetWidth() / 2; float H = PageSize.A4.GetHeight() / 2; document.Open(); PdfContentByte cb = writer.GetDirectContent(); for (int i = 0; i < files.length; i++) { PdfReader currentReader = new PdfReader(files[i]); currentReader.ConsolidateNamedDestinations(); for (int page = 1; page <= currentReader.GetNumberOfPages(); page++) { PdfImportedPage importedPage = writer.GetImportedPage(currentReader, page); float a = 0.5f; float e = (page % 2 == 0) ? W : 0; float f = (page % 4 == 1 || page % 4 == 2) ? H : 0; ArrayList links = currentReader.GetLinks(page); cb.AddTemplate(importedPage, a, 0, 0, a, e, f); for (int j = 0; j < links.Size(); j++) { PdfAnnotation.PdfImportedLink link = (PdfAnnotation.PdfImportedLink)links.Get(j); if (link.IsInternal()) { int dPage = link.GetDestinationPage(); int newDestPage = (dPage-1)/4 + firstPage; float ee = (dPage % 2 == 0) ? W : 0; float ff = (dPage % 4 == 1 || dPage % 4 == 2) ? H : 0; link.SetDestinationPage(newDestPage); link.TransformDestination(a, 0, 0, a, ee, ff); } link.TransformRect(a, 0, 0, a, e, f); writer.AddAnnotation(link.CreateAnnotation(writer)); } if (page % 4 == 0) document.NewPage(); } if (i < files.length - 1) document.NewPage(); firstPage += (currentReader.GetNumberOfPages()+3)/4; } document.Close();

public class PdfAnnotation.PdfImportedLink
Inheritance
PdfAnnotation.PdfImportedLink
Inherited Members

Methods

CreateAnnotation(PdfWriter) 

public PdfAnnotation CreateAnnotation(PdfWriter writer)

Parameters

writer PdfWriter

Returns

PdfAnnotation

GetDestinationPage() 

public int GetDestinationPage()

Returns

int

IsInternal() 

public bool IsInternal()

Returns

bool

SetDestinationPage(int) 

public void SetDestinationPage(int newPage)

Parameters

newPage int

ToString()

Returns a String representation of the link. @since 2.1.6

public override string ToString()

Returns

string

String representation of the imported link

TransformDestination(float, float, float, float, float, float) 

public void TransformDestination(float a, float b, float c, float d, float e, float f)

Parameters

a float
b float
c float
d float
e float
f float

TransformRect(float, float, float, float, float, float) 

public void TransformRect(float a, float b, float c, float d, float e, float f)

Parameters

a float
b float
c float
d float
e float
f float