I have an xml file and .doj template file. trying to download a PDF using itext.jar and ACTRuntime.jar. It is working in java 1.6 and Websphere 7 but after migrating to java 8 and websphere 8, it is just downloading blank white pages in PDF format.
Below is the code that I'm using to produce PDF.
public ByteArrayOutputStream generatePdf(){
ArrayList<Object> bean = new ArrayList<Object>();
BeanOne beanOne = new BeanOne();
beanOne.setId(1);
beanOne.setName("Sai");
beanOne.setPhone("1234567890");
BeanOne beanOne1 = new BeanOne();
beanOne1.setId(2);
beanOne1.setName("Ram");
beanOne1.setPhone("9876543210");
bean.add(beanOne);
bean.add(beanOne1);
AppDataHandler ds = new AppDataHandler();
String tableName = "First Talbe";
Object obj= bean.get(0);
Vector fields = new Vector();
fields.addElement("id = getId");
fields.addElement("name = getName");
fields.addElement("phone = getPhone");
ds.registerObjectAsTable(obj, tableName, fields);
ds.registerDataSet(tableName, bean);
FileInputStream reportTemplateInputStream = new FileInputStream(new File("/template.jod"));
ACJEngine acjEngine = new ACJEngine();
acjEngine.readTemplate(reportTemplateInputStream);
TemplateManager templateManager = acjEngine.getTemplateManager();
templateManager.setLabel("ID", "ID");
templateManager.setLabel("NAME", "NAME");
templateManager.setLabel("PHONE", "PHONE");
acjEngine.setX11GfxAvailibility(false);
acjEngine.setDataSource(ds);
ACJOutputProcessor ec = new ACJOutputProcessor();
IViewerInterface ivi = acjEngine.generateReport();
ByteArrayOutputStream generatedPDFStream = new ByteArrayOutputStream();
ec.setPDFProperty("OutputStream", generatedPDFStream);
ec.generatePDF();
reportTemplateInputStream.close();
Object[] pdfFromActuateArray = new Object[1];
pdfFromActuateArray[0] = generatedPDFStream.toByteArray();
return mergePdfsUsingItext(pdfFromActuateArray);
}
private ByteArrayOutputStream mergePdfsUsingItext(Object[] documents) throws com.itextpdf.text.DocumentException {
ByteArrayOutputStream content = new ByteArrayOutputStream();
int f;
byte[] byteDoc = null;
for (f = 0; f < documents.length; ++f) {
byteDoc = (byte[]) documents[f];
if (byteDoc != null)
break;
}
PdfReader reader = new PdfReader(byteDoc);
int n = reader.getNumberOfPages();
Document document = new Document(reader.getPageSizeWithRotation(1));
PdfWriter writer = PdfWriter.getInstance(document, content);
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfImportedPage page;
int rotation;
while (f < documents.length) {
int i = 0;
while (i < n) {
i++;
document.setPageSize(reader.getPageSizeWithRotation(i));
document.newPage();
page = writer.getImportedPage(reader, i);
cb.addTemplate(page, 1f, 0, 0, 1f, 0, 0);
}
f++;
if (f < documents.length) {
reader = new PdfReader((byte[]) documents[f]);
n = reader.getNumberOfPages();
}
}
document.close();
return content;
}
With the above code I'm getting the ByteArrayOutputStream which I'm printing on the jsp page with content-type as application/pdf.
The result pdf is completely blank. Hope Someone could explain the issue. Also please suggest any good alternative to this code.
Thanks in Advance.
Related
I have code to merge between 2 pdf files using the library OpenPDF like this
public byte[] mergePDF(byte[] pdf1, byte[] pdf2) throws IOException {
ByteArrayOutputStream os = new ByteArrayOutputStream();
Document document = new Document();
PdfWriter writer;
try {
writer = PdfWriter.getInstance(document, os);
} catch (DocumentException e) {
throw new IllegalStateException(e);
}
document.open();
PdfContentByte cb = writer.getDirectContent();
PdfReader pdfReader1 = new PdfReader(pdf1);
PdfReader pdfReader2 = new PdfReader(pdf2);
for (int i = 0; i < pdfReader1.getNumberOfPages(); i++) {
PdfImportedPage page = writer.getImportedPage(pdfReader1, i + 1);
document.setPageSize(pdfReader1.getPageSize(i + 1));
document.newPage();
cb.addTemplate(page, 0, 0);
}
for (int i = 0; i < pdfReader2.getNumberOfPages(); i++) {
PdfImportedPage page = writer.getImportedPage(pdfReader2, i + 1);
document.setPageSize(pdfReader2.getPageSize(i + 1));
document.newPage();
cb.addTemplate(page, 0, 0);
}
document.close();
return os.toByteArray();
}
Merged PDF generated showing a blank page from on Page come from the second pdf but it showing when open with adobe acrobat, firefox, and ubuntu document viewer. Does anyone know what issue? or any missing configuration that needs to be set in my code?
I have a List with multiple PDFs , and I want to merge all of them into a single PdfDocument (im using iText) , and then transform this PdfDocument into a ByteArrayOutputStream (OR a byte[]).
public byte[] mergePdfDocumentsIntoAPdfDocument (List<PdfDocument> pdfDocuments){
final ByteArrayOutputStream mergedPdfStream = new ByteArrayOutputStream();
final PdfDocument mergedPdfDocument = new PdfDocument(new PdfWriter(mergedPdfStream));
//I dont know how can I continue this
What should I do in order to achieve this?
public byte[] mergePdfDocumentsIntoAPdfDocument(List<PdfDocument> pdfDocuments){
ByteArrayOutputStream mergedPdfStream = new ByteArrayOutputStream();
PdfDocument resultDoc = new PdfDocument(new PdfWriter(mergedPdfStream));
for (PdfDocument doc : pdfDocuments) {
int n = doc.getNumberOfPages();
for (int i = 1; i <= n; i++) {
PdfPage page = doc.getPage(i).copyTo(resultDoc);
resultDoc.addPage(page);
}
}
resultDoc.close();
return mergedPdfStream.toByteArray();
}
This question already has answers here:
Merge pdf documents of different width using iText
(2 answers)
Closed 7 years ago.
I am encountering an issue while merging two PDFs generated out of IText.
Code snippet of PDF Creation:
Document configuration is as below:
iText_xls_2_pdf = new Document(PageSize.A4.rotate(),10,0,30,0);
Using this configuration 2 PDFs are created.
After creation of these PDFs, they need to be merged as single pdf.
Below code is used to merge the PDFs:
Document document = new Document(PageSize.A4.rotate(),10,0,30,0);
try {
List<InputStream> pdfs = streamOfPDFFiles;
List<PdfReader> readers = new ArrayList<PdfReader>();
int totalPages = 0;
Iterator<InputStream> iteratorPDFs = pdfs.iterator();
// Create Readers for the pdfs.
while (iteratorPDFs.hasNext()) {
InputStream pdf = iteratorPDFs.next();
PdfReader pdfReader = new PdfReader(pdf);
readers.add(pdfReader);
totalPages += pdfReader.getNumberOfPages();
}
// Create a writer for the outputstream
PdfWriter writer = PdfWriter.getInstance(document, outputStream);
document.open();
BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA,
BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
PdfContentByte cb = writer.getDirectContent(); // Holds the PDF
// data
PdfImportedPage page;
int currentPageNumber = 0;
int pageOfCurrentReaderPDF = 0;
Iterator<PdfReader> iteratorPDFReader = readers.iterator();
// Loop through the PDF files and add to the output.
while (iteratorPDFReader.hasNext()) {
PdfReader pdfReader = iteratorPDFReader.next();
// Create a new page in the target for each source page.
while (pageOfCurrentReaderPDF < pdfReader.getNumberOfPages()) {
document.newPage();
pageOfCurrentReaderPDF++;
currentPageNumber++;
page = writer.getImportedPage(pdfReader,
pageOfCurrentReaderPDF);
cb.addTemplate(page, 0, 0);
// Code for pagination.
if (paginate) {
cb.beginText();
cb.setFontAndSize(bf, 9);
cb.showTextAligned(PdfContentByte.ALIGN_CENTER, ""
+ currentPageNumber + " of " + totalPages, 520,
5, 0);
cb.endText();
}
}
pageOfCurrentReaderPDF = 0;
}
outputStream.flush();
document.close();
outputStream.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (document.isOpen())
document.close();
try {
if (outputStream != null)
outputStream.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
This creates the merged PDF. but Because I have used .rotate in Document configuration, Merged pdf comes in landscape format. How could I avoid this.
Please take a look at table 6.1 in chapter 6 of my book, you'll find out that using PdfWriter to merge documents is not done. If you want to merge documents, you need to use PdfCopy.
For an example, see for instance these questions:
How to do pdf writing and copying at once?
put page number when create PDF with iTextSharp
Edit DirectContent of iTextSharp PdfSmartCopy class
...
(As you can see, this question has been answered many times before...)
An example:
PdfReader reader1 = new PdfReader(file1);
PdfReader reader2 = new PdfReader(file2);
Document document = new Document();
FileOutputStream fos = new FileOutputStream();
PdfCopy copy = new PdfCopy(document, fs);
document.open();
PdfImportedPage page;
PdfCopy.PageStamp stamp;
Phrase phrase;
BaseFont bf = BaseFont.createFont();
Font font = new Font(bf, 9);
int n = reader1.getNumberOfPages();
for (int i = 1; i <= reader1.getNumberOfPages(); i++) {
page = copy.getImportedPage(reader1, i);
stamp = copy.createPageStamp(page);
phrase = new Phrase("page " + i, font);
ColumnText.showTextAligned(stamp.getOverContent(), Element.ALIGN_CENTER, phrase, 520, 5, 0);
stamp.alterContents();
copy.addPage(page);
}
for (int i = 1; i <= reader2.getNumberOfPages(); i++) {
page = copy.getImportedPage(reader2, i);
stamp = copy.createPageStamp(page);
phrase = new Phrase("page " + (n + i), font);
ColumnText.showTextAligned(stamp.getOverContent(), Element.ALIGN_CENTER, phrase, 520, 5, 0);
stamp.alterContents();
copy.addPage(page);
}
document.close();
reader1.close();
reader2.close();
I am using itext library to merge multiple pdfs, I am able to merge multiple pdfs but if pdf contain scan pages then i don't want to add it in merged PDF, Does it possible to check scan pages using itext?.
I am using Following code to merge pdf.
Document PDFJoinInJava = new Document();
PdfCopy PDFCombiner = new PdfCopy(PDFJoinInJava, outputStream);
PdfCopy.PageStamp stamp;
PDFJoinInJava.open();
PdfReader ReadInputPDF;
List<InputStream> pdfs = streamOfPDFFiles;
List<PdfReader> readers = new ArrayList<PdfReader>();
int totalPages = 0;
Iterator<InputStream> iteratorPDFs = pdfs.iterator();
for (; iteratorPDFs.hasNext(); pdfCounter++) {
InputStream pdf = iteratorPDFs.next();
PdfReader pdfReader = new PdfReader(pdf);
readers.add(pdfReader);
totalPages += pdfReader.getNumberOfPages();
pdf.close();
}
int number_of_pages;
int currentPageNumber = 0;
int pageOfCurrentReaderPDF = 0;
Iterator<PdfReader> iteratorPDFReader = readers.iterator();
PdfImportedPage page;
// Loop through the PDF files and add to the output.
int count = 1;
while (iteratorPDFReader.hasNext()) {
PdfReader pdfReader = iteratorPDFReader.next();
count++;
number_of_pages = pdfReader.getNumberOfPages();
// Create a new page in the target for each source page.
for (int pageNum = 0; pageNum < number_of_pages;) {
currentPageNumber++;
pageOfCurrentReaderPDF++;
page = PDFCombiner.getImportedPage(pdfReader, ++pageNum);
ColumnText.showTextAligned(stamp.getUnderContent(),
Element.ALIGN_RIGHT, new Phrase(String
.format("%d", currentPageNumber),new Font(FontFamily.TIMES_ROMAN,3)),
50, 50, 0);
stamp.alterContents();
PDFCombiner.addPage(page);
}
}
PDFJoinInJava.close();
If you like to find whether pdf file is generated by iText or not then you have to try following code:
File file = new File("/Demo.pdf");
Scanner input = new Scanner(new FileReader(file));
while (input.hasNextLine()) {
final String checkline = input.nextLine();
if(checkline.contains("Producer(iText")) {
// a match found!!!!!!
System.out.println(file.getName()+" is generated by iText........ :):) ");
break;
}
}
I am using the following code to merge two pdfs:
File firstPdfFile = new File("firstPdf.pdf");
File secondPdfFile = new File("secondPdf.pdf");
PDFMergerUtility merger = new PDFMergerUtility();
merger.addSource(firstPdfFile);
merger.addSource(secondPdfFile);
String pdfPath = "PdfFile.pdf";
OutputStream bout2 = new BufferedOutputStream(new FileOutputStream(pdfPath));
merger.setDestinationStream(bout2);
merger.mergeDocuments();
File pdfFile = new File(pdfPath);
I am getting the merged pdf correctly but I want to add page number in this pdf file.
Try this code.
File firstPdfFile = new File("firstPdf.pdf");
File secondPdfFile = new File("firstPdf.pdf");
PDFMergerUtility merger = new PDFMergerUtility();
merger.addSource(firstPdfFile);
merger.addSource(secondPdfFile);
String pdfPath = "PdfFile.pdf";
OutputStream bout2 = new BufferedOutputStream(new FileOutputStream(pdfPath));
merger.setDestinationStream(bout2);
merger.mergeDocuments();
PDDocument doc = null;
try {
URL file = new URL("file:///PdfFile.pdf");
doc = PDDocument.load(file);
List<?> allPages = doc.getDocumentCatalog().getAllPages();
PDFont font = PDType1Font.HELVETICA_BOLD;
float fontSize = 36.0f;
for (int i = 0; i < allPages.size(); i++) {
PDPage page = (PDPage) allPages.get(i);
PDPageContentStream footercontentStream = new PDPageContentStream(doc, page, true, true);
footercontentStream.beginText();
footercontentStream.setFont(font, fontSize);
footercontentStream.moveTextPositionByAmount((PDPage.PAGE_SIZE_A4.getUpperRightX() / 2), (PDPage.PAGE_SIZE_A4.getLowerLeftY()));
footercontentStream.drawString(String.valueOf(i + 1));
footercontentStream.endText();
footercontentStream.close();
}
doc.save("PdfFile.pdf");
} finally {
if (doc != null) {
doc.close();
}
}
Try below code for PDFBox 2.0
public class PageNumberExample {
final boolean isCompress = false;
final boolean isContextReset = true;
public static void main(String[] args) throws IOException {
new PageNumberExample().addPageNumber("merged PDF path");
}
public void addPageNumber(String pdfPath) throws IOException {
File mergePpdfFile = new File(pdfPath);
PDDocument document = PDDocument.load(mergePpdfFile);
int totalPage = document.getNumberOfPages();
for(int i=0; i<totalPage; i++) {
PDPage page = document.getPage(i);
PDPageContentStream stream = new PDPageContentStream(document, page, PDPageContentStream.AppendMode.APPEND, isCompress, isContextReset);
stream.setNonStrokingColor(Color.BLACK);
stream.beginText();
stream.setFont(PDType1Font.COURIER, 10);
stream.newLineAtOffset(100, 100); //Set position where you want to print page number.
stream.showText("Page " + (i+1) + " of " + totalPage);
stream.endText();
stream.close();
}
document.save(pdfPath);
document.close();
}
}