How move MediaBox to 0.0 with itext(itextsharp) - java

The MediaBox coordinate of my PDF file is (-8,-8), now I want to set it (0,0).
I tried to set it directly, but the contents of the file were offset.
So I want to change the MediaBox coordinates and move the content as well.
Here's the itextshare code(c#). I'm glad to be able to solve it with Java itext.
using (PdfReader pdfReader = new PdfReader(#"MediaBoxZero.pdf"))
{
using (PdfStamper stamper = new PdfStamper(pdfReader, new FileStream(#"MediaBoxZero_Result.pdf", FileMode.Create)))
{
var mediaBox = pdfReader.GetBoxSize(1, "media");
PdfArray mediaBoxN = new PdfArray();
mediaBoxN.Add(new float[] { 0, 0, mediaBox.Width, mediaBox.Height });
for (int curPageNum = 1; curPageNum <= pdfReader.NumberOfPages; ++curPageNum)
{
PdfDictionary pagedict = pdfReader.GetPageN(curPageNum);
pagedict.Put(PdfName.MEDIABOX, mediaBoxN);
}
}
}
I tried affine transformation, but it didn't work. Affine transformation should only work when generating new PDFs, and I wanted to edit existing PDFs.
using (PdfReader pdfReader = new PdfReader(#"MediaBoxZero.pdf"))
{
using (PdfStamper stamper = new PdfStamper(pdfReader, new FileStream(#"MediaBoxZero_Result.pdf", FileMode.Create)))
{
PdfContentByte pb = stamper.GetOverContent(1);
AffineTransform at = new AffineTransform();
at.Translate(100,0);
pb.Transform(at);
pb.ConcatCTM(at);
//var mediaBox = pdfReader.GetBoxSize(1, "media");
//PdfArray mediaBoxN = new PdfArray();
//mediaBoxN.Add(new float[] { 0, 0, mediaBox.Width, mediaBox.Height });
//for (int curPageNum = 1; curPageNum <= pdfReader.NumberOfPages; ++curPageNum)
//{
// PdfDictionary pagedict = pdfReader.GetPageN(curPageNum);
// foreach (var item in pagedict.GetEnumerator())
// {
// }
// pagedict.Put(PdfName.MEDIABOX, mediaBoxN);
//}
}
}
}

You can shift the page contents like this with iTextSharp to match the MediaBox change:
using (PdfReader pdfReader = new PdfReader(SOURCE_PDF))
{
for (int i = 1; i <= pdfReader.NumberOfPages; i++)
{
Rectangle mediaBox = pdfReader.GetPageSize(i);
if (mediaBox.Left == 0 && mediaBox.Bottom == 0)
continue;
PdfDictionary pageDict = pdfReader.GetPageN(i);
pageDict.Put(PdfName.MEDIABOX, new PdfArray { new PdfNumber(0), new PdfNumber(0),
new PdfNumber(mediaBox.Width), new PdfNumber(mediaBox.Height) });
Rectangle cropBox = pdfReader.GetBoxSize(i, "crop");
if (cropBox != null)
{
pageDict.Put(PdfName.CROPBOX, new PdfArray { new PdfNumber(cropBox.Left - mediaBox.Left),
new PdfNumber(cropBox.Bottom-mediaBox.Bottom), new PdfNumber(cropBox.Right - mediaBox.Left),
new PdfNumber(cropBox.Top - mediaBox.Bottom) });
}
using (MemoryStream stream = new MemoryStream())
{
string translation = String.Format(CultureInfo.InvariantCulture, "1 0 0 1 {0} {1} cm\n", -mediaBox.Left, -mediaBox.Bottom);
byte[] translationBytes = Encoding.ASCII.GetBytes(translation);
stream.Write(translationBytes, 0, translationBytes.Length);
byte[] contentBytes = pdfReader.GetPageContent(i);
stream.Write(contentBytes, 0, contentBytes.Length);
pdfReader.SetPageContent(i, stream.ToArray());
}
}
using (FileStream fileStream = new FileStream(#"MediaBox-normalized.pdf", FileMode.Create))
using (PdfStamper pdfStamper = new PdfStamper(pdfReader, fileStream))
{
}
}
Some remarks:
You cannot simply manipulate the UnderContent of the respective page because iText attempts to prevent changes to the graphics state there (like a change of the current transformation matrix) from bleeding through to the existing content. Thus, here we update the page content on the byte level.
The code updates the CropBox (if set) alongside the MediaBox. Strictly speaking it should also update the other boxes known to PDF pages.
The code ignores annotations. If your PDFs have annotations, you have to also move the annotation Rects and other annotation properties in userspace coordinates, like QuadPoints, Vertices, etc.

Related

Affixing digital signature on a pdf

I am trying to affix a digital signature on a pdf document.
I am able to affix the signature on the pdf but the signature is not visible. I tried a lot looked at so many codes (How to make a signature visible on a document) making signature visible but somehow not able to do .Here is the code which i am using to affix the signature on the pdf.
String inputPDFlocation = INPUT_PDF_BASEPATH + inputPDFfilename;
String outputPDFlocation = OUTPUT_PDF_BASEPATH + inputPDFfilename;
PdfReader reader = new PdfReader(inputPDFlocation); // input PDF
PdfStamper stamper = PdfStamper.createSignature(reader, new FileOutputStream(outputPDFlocation), '\0', null, true);
// Finding the size of the page, and determining the location of signature:
Rectangle cropBox = reader.getCropBox(1); // Gets the 1st page
float width = 78;
float height = 34;
Rectangle rectangle;
// Top left
rectangle = new Rectangle(cropBox.getLeft(), cropBox.getTop(height), cropBox.getLeft(width), cropBox.getTop());
// Creating the appearance
PdfSignatureAppearance sap = stamper.getSignatureAppearance();
sap.setReason(SIGNATURE_REASON);
sap.setLocation(SIGNATURE_LOCATION);
sap.setVisibleSignature(rectangle, 1, sap.getNewSigName()); // new Rectangle(36, 748, 144, 780)
ExternalDigest externalDigest = new BouncyCastleDigest();
int estimatedSize = 8192;
PdfSignature dic = new PdfSignature(PdfName.ADOBE_PPKLITE, PdfName.ADBE_PKCS7_DETACHED);
dic.setReason(sap.getReason());
dic.setLocation(sap.getLocation());
dic.setSignatureCreator(sap.getSignatureCreator());
dic.setContact(sap.getContact());
// Adding a buffer between the signature generation and the certificate start valid time.
Calendar cal = sap.getSignDate();
cal.add(Calendar.MINUTE, 1);
dic.setDate(new PdfDate(cal)); // time-stamp will over-rule this
sap.setCryptoDictionary(dic);
HashMap<PdfName, Integer> exc = new HashMap<PdfName, Integer>();
exc.put(PdfName.CONTENTS, new Integer(estimatedSize * 2 + 2));
sap.preClose(exc);
String hashAlgorithm = DigestAlgorithms.SHA256;
InputStream data = sap.getRangeStream();
byte hash[] = DigestAlgorithms.digest(data, externalDigest.getMessageDigest(hashAlgorithm));
//convert the byte to hex format method 1
StringBuffer sb = new StringBuffer();
for (int i = 0; i < hash.length; i++) {
sb.append(Integer.toString((hash[i] & 0xff) + 0x100, 16).substring(1));
}
// 5. Setting Document hash
esign.setInput(sb.toString());
StringWriter eSignXML = new StringWriter();
try {
JAXBContext.newInstance(Esign.class).createMarshaller().marshal(esign, eSignXML);
} catch (Exception ex) {
logger.error("There was an error converting <Esign> XML to String: {}", ex.getMessage());
}
// 7. Get the digital signer, and sign the XML
DigitalSigner ds = getDigitalSigner();
if (ds == null) {
return eSignResponse;
}
String signedEsignXML = ds.signXML(eSignXML.toString(), true);
// 8. Make a request
String responseXML = null;
Response response = HTTPClient.postRequestWithXmlPayloadOverTLS(eSignConfig.get(URL_ESIGN_SERVER), null, null, signedEsignXML, false);
if (response != null) {
if (Response.Status.Family.familyOf(response.getStatus()) == Response.Status.Family.SUCCESSFUL) {
responseXML = response.getEntity().toString();
}
}
// 9. Parse the response
EsignResp esignResp = XMLUtil.parseXML(responseXML, EsignResp.class);
if (esignResp != null) {
if (esignResp.getStatus() != null && esignResp.getStatus().equalsIgnoreCase("1")) {
eSignResponse.setStatus(1);
// If response is a SUCCESS, affix the signature ...
String pkcs7Response = esignResp.getPkcs7Response();
CMSSignedData cms = new CMSSignedData(Base64.decodeBase64(pkcs7Response.getBytes()));
byte[] paddedSig = new byte[estimatedSize];
System.arraycopy(cms.getEncoded(), 0, paddedSig, 0, cms.getEncoded().length);
PdfDictionary dic2 = new PdfDictionary();
dic2.put(PdfName.CONTENTS, new PdfString(paddedSig).setHexWriting(true));
sap.close(dic2);
}
You use a 0x0 rectangle for the visualization:
// Finding the size of the page, and determining the location of signature:
Rectangle cropBox = reader.getCropBox(1); // Gets the 1st page
float width = 0;
float height = 0;
Rectangle rectangle;
// Top left
rectangle = new Rectangle(cropBox.getLeft(), cropBox.getTop(height), cropBox.getLeft(width), cropBox.getTop());
[...]
sap.setVisibleSignature(rectangle, 1, sap.getNewSigName()); // new Rectangle(36, 748, 144, 780)
Unless you choose positive values for width and height, you will never see a signature visualization.

PDFBox: put two A4 pages on one A3

I have a pdf document with one or more pages A4 paper.
The resulting pdf document should be A3 paper where each page contains two from the first one (odd on the left, even on the right side).
I already got it to render the A4 pages into images and the odd pages are successfully placed on the first parts of a new A3 pages but I cannot get the even pages to be placed.
public class CreateLandscapePDF {
public void renderPDF(File inputFile, String output) {
PDDocument docIn = null;
PDDocument docOut = null;
float width = 0;
float height = 0;
float posX = 0;
float posY = 0;
try {
docIn = PDDocument.load(inputFile);
PDFRenderer pdfRenderer = new PDFRenderer(docIn);
docOut = new PDDocument();
int pageCounter = 0;
for(PDPage pageIn : docIn.getPages()) {
pageIn.setRotation(270);
BufferedImage bufferedImage = pdfRenderer.renderImage(pageCounter);
width = bufferedImage.getHeight();
height = bufferedImage.getWidth();
PDPage pageOut = new PDPage(PDRectangle.A3);
PDImageXObject image = LosslessFactory.createFromImage(docOut, bufferedImage);
PDPageContentStream contentStream = new PDPageContentStream(docOut, pageOut, AppendMode.APPEND, true, true);
if((pageCounter & 1) == 0) {
pageOut.setRotation(90);
docOut.addPage(pageOut);
posX = 0;
posY = 0;
} else {
posX = 0;
posY = width;
}
contentStream.drawImage(image, posX, posY);
contentStream.close();
bufferedImage.flush();
pageCounter++;
}
docOut.save(output + "\\LandscapeTest.pdf");
docOut.close();
docIn.close();
} catch(IOException io) {
io.printStackTrace();
}
}
}
I'm using Apache PDFBox 2.0.2 (pdfbox-app-2.0.2.jar)
Thank you very much for your help and the link to the other question - I think I already read it but wasn't able to use in in my code yet.
But finally the PDFClown made the job, though I think it's not very nice to use PDFBox and PDFClown in the same program.
Anyway here's my working code to combine A4 pages on A3 paper.
public class CombinePages {
public void run(String input, String output) {
try {
Document source = new File(input).getDocument();
Pages sourcePages = source.getPages();
Document target = new File().getDocument();
Page targetPage = null;
int pageCounter = 0;
double moveByX = .0;
for(Page sourcePage : source.getPages()) {
if((pageCounter & 1) == 0) {
//even page gets a blank page
targetPage = new Page(target);
target.setPageSize(PageFormat.getSize(PageFormat.SizeEnum.A3, PageFormat.OrientationEnum.Landscape));
target.getPages().add(targetPage);
moveByX = .0;
} else {
moveByX = .50;
}
//get content from source page
XObject xObject = sourcePages.get(pageCounter).toXObject(target);
PrimitiveComposer composer = new PrimitiveComposer(targetPage);
Dimension2D targetSize = targetPage.getSize();
Dimension2D sourceSize = xObject.getSize();
composer.showXObject(xObject, new Point2D.Double(targetSize.getWidth() * moveByX, targetSize.getHeight() * .0), new Dimension(sourceSize.getWidth(), sourceSize.getHeight()), XAlignmentEnum.Left, YAlignmentEnum.Top, 0);
composer.flush();
pageCounter++;
}
target.getFile().save(output + "\\CombinePages.pdf", SerializationModeEnum.Standard);
source.getFile().close();
} catch (FileNotFoundException fnf) {
log.error(fnf);
} catch (IOException io) {
log.error(io);
}
}
}

Splitting a large Pdf file with PDFBox gets large result files

I am processing some large pdf files, (up to 100MB and about 2000 pages), with pdfbox. Some of the pages contain a QR code, I want to split those files into smaller ones with the pages from one QR code to the next.
I got this, but the result file sizes are the same as the source file. I mean, if I cut a 100MB pdf file into a ten files I am getting ten files 100MB each.
This is the code:
PDDocument documentoPdf =
PDDocument.loadNonSeq(new File("myFile.pdf"),
new RandomAccessFile(new File("./tmp/temp"), "rw"));
int numPages = documentoPdf.getNumberOfPages();
List pages = documentoPdf.getDocumentCatalog().getAllPages();
int previusQR = 0;
for(int i =0; i<numPages; i++){
PDPage page = (PDPage) pages.get(i);
BufferedImage firstPageImage =
page.convertToImage(BufferedImage.TYPE_USHORT_565_RGB , 200);
String qrText = readQRWithQRCodeMultiReader(firstPageImage, hintMap);
if(qrText != null and i!=0){
PDDocument outputDocument = new PDDocument();
for(int j = previusQR; j<i; j++){
outputDocument.importPage((PDPage)pages.get(j));
}
File f = new File("./splitting_files/"+previusQR+".pdf");
outputDocument.save(f);
outputDocument.close();
documentoPdf.close();
}
I also tried the following code for storing the new file:
PDDocument outputDocument = new PDDocument();
for(int j = previusQR; j<i; j++){
PDStream src = ((PDPage)pages.get(j)).getContents();
PDStream streamD = new PDStream(outputDocument);
streamD.addCompression();
PDPage newPage = new PDPage(new
COSDictionary(((PDPage)pages.get(j)).getCOSDictionary()));
newPage.setContents(streamD);
byte[] buf = new byte[10240];
int amountRead = 0;
InputStream is = null;
OutputStream os = null;
is = src.createInputStream();
os = streamD.createOutputStream();
while((amountRead = is.read(buf,0,10240)) > -1) {
os.write(buf, 0, amountRead);
}
outputDocument.addPage(newPage);
}
File f = new File("./splitting_files/"+previusQR+".pdf");
outputDocument.save(f);
outputDocument.close();
But this code creates files which lacks some content and also have the same size than the original.
How can I create smaller pdfs files from a larger one?
Is it posible with PDFBox? Is there any other library with which I can transform a single page into an image (for qr recognition), and also allows me to split a big pdf file into smaller ones?
Thx!
Thx! Tilman you are right, the PDFSplit command generates smaller files. I checked the PDFSplit code out and found that it removes the page links to avoid not needed resources.
Code extracted from Splitter.class :
private void processAnnotations(PDPage imported) throws IOException
{
List<PDAnnotation> annotations = imported.getAnnotations();
for (PDAnnotation annotation : annotations)
{
if (annotation instanceof PDAnnotationLink)
{
PDAnnotationLink link = (PDAnnotationLink)annotation;
PDDestination destination = link.getDestination();
if (destination == null && link.getAction() != null)
{
PDAction action = link.getAction();
if (action instanceof PDActionGoTo)
{
destination = ((PDActionGoTo)action).getDestination();
}
}
if (destination instanceof PDPageDestination)
{
// TODO preserve links to pages within the splitted result
((PDPageDestination) destination).setPage(null);
}
}
else
{
// TODO preserve links to pages within the splitted result
annotation.setPage(null);
}
}
}
So eventually my code looks like this:
PDDocument documentoPdf =
PDDocument.loadNonSeq(new File("docs_compuestos/50.pdf"), new RandomAccessFile(new File("./tmp/t"), "rw"));
int numPages = documentoPdf.getNumberOfPages();
List pages = documentoPdf.getDocumentCatalog().getAllPages();
int previusQR = 0;
for(int i =0; i<numPages; i++){
PDPage firstPage = (PDPage) pages.get(i);
String qrText ="";
BufferedImage firstPageImage = firstPage.convertToImage(BufferedImage.TYPE_USHORT_565_RGB , 200);
firstPage =null;
try {
qrText = readQRWithQRCodeMultiReader(firstPageImage, hintMap);
} catch (NotFoundException e) {
e.printStackTrace();
} finally {
firstPageImage = null;
}
if(i != 0 && qrText!=null){
PDDocument outputDocument = new PDDocument();
outputDocument.setDocumentInformation(documentoPdf.getDocumentInformation());
outputDocument.getDocumentCatalog().setViewerPreferences(
documentoPdf.getDocumentCatalog().getViewerPreferences());
for(int j = previusQR; j<i; j++){
PDPage importedPage = outputDocument.importPage((PDPage)pages.get(j));
importedPage.setCropBox( ((PDPage)pages.get(j)).findCropBox() );
importedPage.setMediaBox( ((PDPage)pages.get(j)).findMediaBox() );
// only the resources of the page will be copied
importedPage.setResources( ((PDPage)pages.get(j)).getResources() );
importedPage.setRotation( ((PDPage)pages.get(j)).findRotation() );
processAnnotations(importedPage);
}
File f = new File("./splitting_files/"+previusQR+".pdf");
previusQR = i;
outputDocument.save(f);
outputDocument.close();
}
}
}
Thank you very much!!

pdf file is opening in a bad way after download

using iText 2.1.7 jar (or any newer version), after merging and creating a pdf file than downloading it, this file opens with the bottom part of some pages not shown. the problem is reproduced when i have an image covering the entire page of the pdf file. After downloading, i can't see the whole image in my new downloaded pdf. any idea?
switch (type){
case PDF_FILE : reader = new PdfReader(filePath);
break;
//...code...
}if (reader != null){
copyToWriter(out, reader, annotations, fileLabel);
}
code in copyToWriter function:
private void copyToWriter(OutputStream out, PdfReader reader, Annotation[] annotations, String fileLabel) throws DocumentException, IOException, BadPdfFormatException {
PdfDictionary outi = null;
PdfICCBased ib = null;
if (reader != null) {
reader.consolidateNamedDestinations();
// we retrieve the total number of pages
int n = reader.getNumberOfPages();
List bookmarks = SimpleBookmark.getBookmark(reader);
if (bookmarks != null) {
// original bookmark copy and page Shift
if (_pageOffset != 0) {
SimpleBookmark.shiftPageNumbers(bookmarks, _pageOffset,
null);
}
}
if(_setMergeBookmark) {
// we add specifics bookmarks for beginning page of each added file.
//...code...(not used)
}
else {
// original bookmark copy and page Shift
if (bookmarks != null) {
_master.addAll(bookmarks);
}
}
_pageOffset += n;
if (_writer == null) {
// step 1: creation of a document-object
_document = new Document();
// step 2: we create a writer that listens to the document
_writer = PdfWriter.getInstance(_document, out);
if (_stamp != null) {
_stamp.setTotalPage( n);
_writer.setPageEvent(_stamp);
}
if(_setMergeBookmark) {
_writer.setViewerPreferences(PdfWriter.PageLayoutSinglePage
| PdfWriter.PageModeUseOutlines);
}
else {
_writer.setViewerPreferences(PdfWriter.PageLayoutSinglePage
| PdfWriter.PageModeUseNone);
}
_writer.setViewerPreferences(PdfWriter.DisplayDocTitle);
if (_pdfA_pdfX) {
//...code... (not used)
}
//
// step 3: we open the document
_document.open();
//
}
// adding the content
PdfContentByte cb = _writer.getDirectContent();
// step 4: we add content
PdfImportedPage page;
for (int i = 0; i < n;) {
++i;
page = _writer.getImportedPage(reader, i);
// get PageSize to ensure landscape/portrait is kept
// also look at rotation tag then we HAD TO use getPageSizeWithRotation
// instead of getPageSize
Rectangle gle = reader.getPageSizeWithRotation(i);
int rotation = reader.getPageRotation(i);
_document.setPageSize( gle);
_document.newPage();
float[] matf = new float[6];
if (rotation == 90) {
matf[0] = 0;
matf[1] = -1f;
matf[2] = 1f;
matf[3] = 0;
matf[4] = 0;
matf[5] = gle.getHeight();
// use transformation matrix to rotate imported page according 'rotation' value
// cb.addTemplate(page, 0, -1f, 1f, 0, 0, gle.getHeight());
}
else if (rotation == 270) {
matf[0] = 0;
matf[1] = 1f;
matf[2] = -1f;
matf[3] = 0;
matf[4] = gle.getWidth();
matf[5] = 0;
// use transformation matrix to rotate imported page according 'rotation' value
// cb.addTemplate(page, 0, 1f, -1f, 0, gle.getWidth(), 0);
}
else { //my case here
matf[0] = 1f;
matf[1] = 0;
matf[2] = 0;
matf[3] = 1f;
matf[4] = 0;
matf[5] = 0;
// cb.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
}
cb.addTemplate(page, matf[0], matf[1], matf[2], matf[3], matf[4], matf[5]);
//copy text annotation on destination
PdfDictionary pageannot = reader.getPageN(i);
PdfArray annots = null;
annots = pageannot.getAsArray(PdfName.ANNOTS);
//if annots is null... code...
}
}
}

Creating Table of contents for an existing Pdf

I am trying to create a table of contents for an existing pdf file and subsequently merge the table of contents page to the pdf file.Page heading and corresponding page numbers are available in a separate excel file.
I am using iText for Pdf manipulation.
All the examples i came across were related to inserting links while creating a new pdf. But in my case I want to create links for existing pages.
Any suggestion or examples would be highly appreciated.
I finally found the answer. Thanks to my friend for pointing me towards an example of this in c#.
The code in java looks like :
public class Test1 {
public static void main(String args[]) throws Exception{
PdfReader reader = new PdfReader(new RandomAccessFileOrArray("C:\\test.pdf"), null);
Document doc = new Document(reader.getPageSize(1));
PdfWriter writer = PdfWriter.getInstance(doc, new FileOutputStream("C:\\result.pdf"));
Font link = FontFactory.getFont("Arial", 12, Font.UNDERLINE);
doc.open();
PdfContentByte pdfContentByte = writer.getDirectContent();
Anchor topAnchor = null;
PdfImportedPage page = null;
for (int i = 1; i < reader.getNumberOfPages(); i++)
{
if (i == 1)
{
Anchor click = new Anchor("Click to go to Target");
click.setReference("#target");
Paragraph p1 = new Paragraph();
p1.add(click);
doc.add(p1);
page = writer.getImportedPage(reader, i);
doc.newPage();
pdfContentByte.addTemplate(page, 0, 0);
}
else
{
if (i == 5)
{
Anchor target = new Anchor("My targer");
target.setName("target");
Paragraph p3 = new Paragraph();
p3.add(target);
doc.add(p3);
}
page = writer.getImportedPage(reader, i);
doc.newPage();
pdfContentByte.addTemplate(page, 0, 0);
}
}
doc.close();
}
}
I looked for a patch I made in Flying Saucer that made it possible to click on a link and make it do something. This was a very long time ago so I'm not sure if this will help or not, but it seems to be using iText for this. Here's the snippet of code I think I wrote for this :P
private void processLink(RenderingContext c, Box box) {
Element elem = box.getElement();
if (elem != null) {
NamespaceHandler handler = _sharedContext.getNamespaceHandler();
String uri = handler.getLinkUri(elem);
if (uri != null) {
if (uri.length() > 1 && uri.charAt(0) == '#') {
String anchor = uri.substring(1);
Box target = _sharedContext.getBoxById(anchor);
if (target != null) {
PdfDestination dest = createDestination(c, target);
if (dest != null) {
PdfAction action = new PdfAction();
if (!"".equals(handler.getAttributeValue(elem, "onclick"))) {
action = PdfAction.javaScript(handler.getAttributeValue(elem, "onclick"), _writer);
} else {
action.put(PdfName.S, PdfName.GOTO);
action.put(PdfName.D, dest);
}
com.lowagie.text.Rectangle targetArea = checkLinkArea(c, box);
if (targetArea == null) {
return;
}
targetArea.setBorder(0);
targetArea.setBorderWidth(0);
PdfAnnotation annot = new PdfAnnotation(_writer, targetArea.getLeft(), targetArea.getBottom(),
targetArea.getRight(), targetArea.getTop(), action);
annot.put(PdfName.SUBTYPE, PdfName.LINK);
annot.setBorderStyle(new PdfBorderDictionary(0.0f, 0));
annot.setBorder(new PdfBorderArray(0.0f, 0.0f, 0));
_writer.addAnnotation(annot);
}
}
} else if (uri.indexOf("://") != -1) {
PdfAction action = new PdfAction(uri);
com.lowagie.text.Rectangle targetArea = checkLinkArea(c, box);
if (targetArea == null) {
return;
}
PdfAnnotation annot = new PdfAnnotation(_writer, targetArea.getLeft(), targetArea.getBottom(), targetArea.getRight(),
targetArea.getTop(), action);
annot.put(PdfName.SUBTYPE, PdfName.LINK);
annot.setBorderStyle(new PdfBorderDictionary(0.0f, 0));
annot.setBorder(new PdfBorderArray(0.0f, 0.0f, 0));
_writer.addAnnotation(annot);
}
}
}
}
This is in the org.xhtmlrenderer.pdf.ITextOutputDevice.
I'm not sure what context you're working in. Is that enough information to figure out how to do this?

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