com.itextpdf.text.pdf.PdfImportedPage Java Examples

void split(PdfReader reader, int page) throws IOException {
    PdfImportedPage importedPage = writer.getImportedPage(reader, page);

    Rectangle pageSizeToImport = reader.getPageSize(page);
    Iterable<Rectangle> rectangles = determineSplitRectangles(reader, page);

    for (Rectangle rectangle : rectangles) {
        newPage(rectangle);
        PdfContentByte directContent = writer.getDirectContent();
        directContent.saveState();
        directContent.rectangle(rectangle.getLeft(), rectangle.getBottom(), rectangle.getWidth(), rectangle.getHeight());
        directContent.clip();
        directContent.newPath();

        writer.getDirectContent().addTemplate(importedPage, -pageSizeToImport.getLeft(), -pageSizeToImport.getBottom());

        directContent.restoreState();
    }
}
 

void split(PdfReader reader, int page) throws IOException {
    PdfImportedPage importedPage = writer.getImportedPage(reader, page);
    PdfContentByte directContent = writer.getDirectContent();
    yPosition = pageSize.getTop();

    Rectangle pageSizeToImport = reader.getPageSize(page);
    float[] borderPositions = determineSplitPositions(reader, page);
    if (borderPositions == null || borderPositions.length < 2)
        return;

    for (int borderIndex = 0; borderIndex + 1 < borderPositions.length; borderIndex++) {
        float height = borderPositions[borderIndex] - borderPositions[borderIndex + 1];
        if (height <= 0)
            continue;

        directContent.saveState();
        directContent.rectangle(0, yPosition - height, pageSizeToImport.getWidth(), height);
        directContent.clip();
        directContent.newPath();

        writer.getDirectContent().addTemplate(importedPage, 0, yPosition - (borderPositions[borderIndex] - pageSizeToImport.getBottom()));

        directContent.restoreState();
        newPage();
    }
}
 

void merge(PdfReader reader, PdfReaderContentParser parser, int page) throws IOException
{
    TextMarginFinder finder = parser.processContent(page, new TextMarginFinder());
    Rectangle pageSizeToImport = reader.getPageSize(page);
    float heightToImport = finder.getHeight();
    float maxHeight = pageSize.getHeight() - topMargin - bottomMargin;
    if (heightToImport > maxHeight)
    {
        throw new IllegalArgumentException(String.format("Page %s content too large; height: %s, limit: %s.", page, heightToImport, maxHeight));
    }

    if (heightToImport > yPosition - pageSize.getBottom(bottomMargin))
    {
        newPage();
    }
    else if (!writer.isPageEmpty())
    {
        heightToImport += gap;
    }
    yPosition -= heightToImport;

    PdfImportedPage importedPage = writer.getImportedPage(reader, page);
    writer.getDirectContent().addTemplate(importedPage, 0, yPosition - (finder.getLly() - pageSizeToImport.getBottom()));
}
 

@Test
public void testWithWriter() throws DocumentException, IOException
{
    InputStream resourceStream = getClass().getResourceAsStream("test.pdf");
    try
    {
        PdfReader reader = new PdfReader(resourceStream);
        Rectangle pageSize = reader.getPageSize(1);

        Rectangle rect = getOutputPageSize(pageSize, reader, 1);

        Document document = new Document(rect, 0, 0, 0, 0);
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(new File(RESULT_FOLDER, "test-trimmed-writer.pdf")));

        document.open();
        PdfImportedPage page;

        // Go through all pages
        int n = reader.getNumberOfPages();
        for (int i = 1; i <= n; i++)
        {
            document.newPage();
            page = writer.getImportedPage(reader, i);
            System.out.println("BBox:  "+ page.getBoundingBox().toString());
            Image instance = Image.getInstance(page);
            document.add(instance);
            Rectangle outputPageSize = document.getPageSize();
            System.out.println(outputPageSize.toString());
        }
        document.close();
    }
    finally
    {
        if (resourceStream != null)
            resourceStream.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/35374110/how-do-i-use-itext-to-have-a-landscaped-pdf-on-half-of-a-a4-back-to-portrait-and">
 * How do i use iText to have a landscaped PDF on half of a A4 back to portrait and full size on A4
 * </a>
 * <p>
 * This sample shows how to rotate and enlarge the upper half of an A4 page to fit into a new A4 page.
 * </p>
 */
@Test
public void testRotateAndZoomUpperHalfPage() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("/mkl/testarea/itext5/extract/test.pdf");
            OutputStream result = new FileOutputStream(new File(RESULT_FOLDER, "test-upperHalf.pdf"))   )
    {
        PdfReader reader = new PdfReader(resource);
        Document document = new Document(PageSize.A4);
        PdfWriter writer = PdfWriter.getInstance(document, result);
        document.open();

        double sqrt2 = Math.sqrt(2);
        Rectangle pageSize = reader.getPageSize(1);
        PdfImportedPage importedPage = writer.getImportedPage(reader, 1);
        writer.getDirectContent().addTemplate(importedPage, 0, sqrt2, -sqrt2, 0, pageSize.getTop() * sqrt2, -pageSize.getLeft() * sqrt2);
        
        document.close();
    }
}
 

public List<byte[]> split(byte[] input) throws IOException, DocumentException {
    PdfReader pdfReader = new PdfReader(input);
    List<byte[]> pdfFiles = new ArrayList<>();
    int pageCount = pdfReader.getNumberOfPages();
    int pageIndex = 0;
    while (++pageIndex <= pageCount) {
        Document document = new Document(pdfReader.getPageSizeWithRotation(pageIndex));
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        PdfCopy pdfCopy = new PdfSmartCopy(document, byteArrayOutputStream);
        pdfCopy.setFullCompression();
        PdfImportedPage pdfImportedPage = pdfCopy.getImportedPage(pdfReader, pageIndex);
        document.open();
        pdfCopy.addPage(pdfImportedPage);
        document.close();
        pdfCopy.close();
        pdfFiles.add(byteArrayOutputStream.toByteArray());
    }
    return pdfFiles;
}
 

static byte[] createMultiUseIndirectTextPdf() throws DocumentException, IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, baos);
    document.open();
    PdfReader reader = new PdfReader(createSimpleTextPdf());
    PdfImportedPage template = writer.getImportedPage(reader, 1);
    Rectangle pageSize = reader.getPageSize(1);
    writer.getDirectContent().addTemplate(template, 0, .7f, -.7f, 0, pageSize.getRight(), (pageSize.getTop() + pageSize.getBottom()) / 2);
    writer.getDirectContent().addTemplate(template, 0, .7f, -.7f, 0, pageSize.getRight(), pageSize.getBottom());
    document.newPage();
    writer.getDirectContent().addTemplate(template, pageSize.getLeft(), pageSize.getBottom());
    document.close();

    return baos.toByteArray();
}
 

static byte[] createRotatedIndirectTextPdf() throws DocumentException, IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, baos);
    document.open();
    PdfReader reader = new PdfReader(createSimpleTextPdf());
    PdfImportedPage template = writer.getImportedPage(reader, 1);
    Rectangle pageSize = reader.getPageSize(1);
    writer.getDirectContent().addTemplate(template, .7f, .7f, -.7f, .7f, 400, -200);
    document.newPage();
    writer.getDirectContent().addTemplate(template, pageSize.getLeft(), pageSize.getBottom());
    document.close();

    return baos.toByteArray();
}
 

private static File copyToMultiplePages(CropJob cropJob) throws IOException, DocumentException {

        PdfReader reader = new PdfReader(cropJob.getSource().getAbsolutePath());
        Document document = new Document();

        File resultFile = File.createTempFile("cropped", ".pdf");
        PdfSmartCopy pdfCopy = new PdfSmartCopy(document, new FileOutputStream(resultFile));
        document.open();
        PdfImportedPage page;

        for (int pageNumber = 1; pageNumber <= cropJob.getSourcePageCount(); pageNumber++) {
            SingleCluster currentCluster = cropJob.getClusterCollection().getSingleCluster(pageNumber);
            page = pdfCopy.getImportedPage(reader, pageNumber);
            pdfCopy.addPage(page);
            for (int j = 1; j < currentCluster.getRatiosList().size(); j++) {
                pdfCopy.addPage(page);
            }
        }
        document.close();
        pdfCopy.close();
        reader.close();
        return resultFile;
    }
 

/**
 * This methods creates a copy of the source document containing each page twice,
 * once with the cropbox limited to the left half page, once to the right one.
 */
void splitIntoHalfPages(InputStream source, File target) throws IOException, DocumentException
{
    final PdfReader reader = new PdfReader(source);
    
    try (   OutputStream targetStream = new FileOutputStream(target)    )
    {
        Document document = new Document();
        PdfCopy copy = new PdfCopy(document, targetStream);
        document.open();

        for (int page = 1; page <= reader.getNumberOfPages(); page++)
        {
            PdfDictionary pageN = reader.getPageN(page);
            Rectangle cropBox = reader.getCropBox(page);
            PdfArray leftBox = new PdfArray(new float[]{cropBox.getLeft(), cropBox.getBottom(), (cropBox.getLeft() + cropBox.getRight()) / 2.0f, cropBox.getTop()});
            PdfArray rightBox = new PdfArray(new float[]{(cropBox.getLeft() + cropBox.getRight()) / 2.0f, cropBox.getBottom(), cropBox.getRight(), cropBox.getTop()});

            PdfImportedPage importedPage = copy.getImportedPage(reader, page);
            pageN.put(PdfName.CROPBOX, leftBox);
            copy.addPage(importedPage);
            pageN.put(PdfName.CROPBOX, rightBox);
            copy.addPage(importedPage);
        }
        
        document.close();
    }
    finally
    {
        reader.close();
    }
}
 

public static byte[] Merge(File[] documentPaths) throws IOException, DocumentException
{
    byte[] mergedDocument;

    try (ByteArrayOutputStream memoryStream = new ByteArrayOutputStream())
    {
        Document document = new Document();
        PdfSmartCopy pdfSmartCopy = new PdfSmartCopy(document, memoryStream);
        document.open();

        for (File docPath : documentPaths)
        {
            PdfReader reader = new PdfReader(docPath.toString());
            try
            {
                reader.consolidateNamedDestinations();
                int numberOfPages = reader.getNumberOfPages();
                for (int page = 0; page < numberOfPages;)
                {
                    PdfImportedPage pdfImportedPage = pdfSmartCopy.getImportedPage(reader, ++page);
                    pdfSmartCopy.addPage(pdfImportedPage);
                }
            }
            finally
            {
                reader.close();
            }
        }

        document.close();
        mergedDocument = memoryStream.toByteArray();
    }

    return mergedDocument;
}
 

public static byte[] ExtractPages(String pdfDocument, int startPage, int endPage) throws IOException, DocumentException
{
    try (InputStream pdfDocumentStream = SmartMerging.class.getResourceAsStream(pdfDocument))
    {
        PdfReader reader = new PdfReader(pdfDocumentStream);
        int numberOfPages = reader.getNumberOfPages();
        int endPageResolved = endPage > 0 ? endPage : numberOfPages;
        if (startPage > numberOfPages || endPageResolved > numberOfPages)
            System.err.printf("Error: page indices (%s, %s) out of bounds. Document has {2} pages.", startPage, endPageResolved, numberOfPages);

        byte[] outputDocument;
        try (ByteArrayOutputStream msOut = new ByteArrayOutputStream())
        {
            Document doc = new Document();
            PdfCopy pdfCopyProvider = new PdfCopy(doc, msOut);
            doc.open();
            for (int i = startPage; i <= endPageResolved; i++)
            {
                PdfImportedPage page = pdfCopyProvider.getImportedPage(reader, i);
                pdfCopyProvider.addPage(page);
            }
            doc.close();
            reader.close();
            outputDocument = msOut.toByteArray();
        }

        return outputDocument;
    }
}
 

void merge(PdfReader reader, PdfReaderContentParser parser, int page) throws IOException
{
    PdfImportedPage importedPage = writer.getImportedPage(reader, page);
    PdfContentByte directContent = writer.getDirectContent();
    
    PageVerticalAnalyzer finder = parser.processContent(page, new PageVerticalAnalyzer());
    if (finder.verticalFlips.size() < 2)
        return;
    Rectangle pageSizeToImport = reader.getPageSize(page);

    int startFlip = finder.verticalFlips.size() - 1;
    boolean first = true;
    while (startFlip > 0)
    {
        if (!first)
            newPage();

        float freeSpace = yPosition - pageSize.getBottom(bottomMargin);
        int endFlip = startFlip + 1;
        while ((endFlip > 1) && (finder.verticalFlips.get(startFlip) - finder.verticalFlips.get(endFlip - 2) < freeSpace))
            endFlip -=2;
        if (endFlip < startFlip)
        {
            float height = finder.verticalFlips.get(startFlip) - finder.verticalFlips.get(endFlip);

            directContent.saveState();
            directContent.rectangle(0, yPosition - height, pageSizeToImport.getWidth(), height);
            directContent.clip();
            directContent.newPath();

            writer.getDirectContent().addTemplate(importedPage, 0, yPosition - (finder.verticalFlips.get(startFlip) - pageSizeToImport.getBottom()));

            directContent.restoreState();
            yPosition -= height + gap;
            startFlip = endFlip - 1;
        }
        else if (!first) 
            throw new IllegalArgumentException(String.format("Page %s content sections too large.", page));
        first = false;
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/28911509/how-to-retain-page-labels-when-concatenating-an-existing-pdf-with-a-pdf-created">
 * How to retain page labels when concatenating an existing pdf with a pdf created from scratch?
 * </a>
 * <p>
 * A proposal how to implement the task using a {@link PdfStamper}.
 */
@Test
public void testInsertTitlePage() throws IOException, DocumentException
{
    try (   InputStream documentStream = getClass().getResourceAsStream("Labels.pdf");
            InputStream titleStream = getClass().getResourceAsStream("Cover.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "labels-with-cover-page.pdf"))    )
    {
        PdfReader titleReader = new PdfReader(titleStream);
        PdfReader reader = new PdfReader(documentStream);
        PdfStamper stamper = new PdfStamper(reader, outputStream);

        PdfImportedPage page = stamper.getImportedPage(titleReader, 1);
        stamper.insertPage(1, titleReader.getPageSize(1));
        PdfContentByte content = stamper.getUnderContent(1);
        content.addTemplate(page, 0, 0);
        copyLinks(stamper, 1, titleReader, 1);

        PdfDictionary root = reader.getCatalog();
        PdfDictionary labels = root.getAsDict(PdfName.PAGELABELS);
        if (labels != null)
        {
            PdfArray newNums = new PdfArray();
            
            newNums.add(new PdfNumber(0));
            PdfDictionary coverDict = new PdfDictionary();
            coverDict.put(PdfName.P, new PdfString("Cover Page"));
            newNums.add(coverDict);

            PdfArray nums = labels.getAsArray(PdfName.NUMS);
            if (nums != null)
            {
                for (int i = 0; i < nums.size() - 1; )
                {
                    int n = nums.getAsNumber(i++).intValue();
                    newNums.add(new PdfNumber(n+1));
                    newNums.add(nums.getPdfObject(i++));
                }
            }

            labels.put(PdfName.NUMS, newNums);
            stamper.markUsed(labels);
        }

        stamper.close();
    }
}
 

/**
    * <a href="http://stackoverflow.com/questions/29977927/table-header-in-pdf-getting-displayed-using-itextpdf5-1-1-but-not-in-itextpdf5-5">
    * table header in pdf getting displayed using itextpdf5.1.1 but not in itextpdf5.5.3
    * </a>
    * <p>
    * Indeed, the code as presented by the OP does not show the header table. This makes sense, though:
    * </p>
    * <p>
    * The OP has cells with default padding (i.e. 2) and height 10, and he tries to insert text at height 7.
    * But 2 (top margin) + 7 (text height) + 2 (bottom margin) = 11, i.e. more than fits into the cell height 10.
    * Thus, the text does not fit and is not displayed.
    * </p>
    * <p>
    * You can fix this by either
    * <ul>
    * <li>using a smaller font, e.g. 6, or
    * <li>using a higher cell, e.g. 11, or
    * <li>using a smaller padding, e.g. 1, see below-
    * </p>
    */
@Test
public void testSandeepSinghHeaderTable() throws DocumentException, IOException
{
	byte[] strIntermediatePDFFile = createSampleDocument();
	String header1 = "Header 1";
	String header2 = "Header 2";
	String header3 = "Header 3";
	String header5 = "Header 5";
	

	Document document = new Document(PageSize.A4.rotate(), 20, 20, 75, 20);
	PdfCopy copy = new PdfCopy(document, new FileOutputStream(new File(RESULT_FOLDER, "stampTableHeader.pdf")));

	document.open();
	PdfReader pdfReaderIntermediate = new PdfReader(strIntermediatePDFFile);
	int numberOfPages = pdfReaderIntermediate.getNumberOfPages();
	Font ffont = new Font(Font.FontFamily.UNDEFINED, 7, Font.NORMAL);
	System.out.println("###### No. of Pages: " + numberOfPages);
	for (int j = 0; j < numberOfPages; )
	{
	    PdfImportedPage page = copy.getImportedPage(pdfReaderIntermediate, ++j);
	    PageStamp stamp = copy.createPageStamp(page);
	    Phrase footer = new Phrase(String.format("%d of %d", j, numberOfPages), ffont);
	    ColumnText.showTextAligned(stamp.getUnderContent(),
	                               Element.ALIGN_CENTER, footer,
	                               (document.right() - document.left()) /
	                               2 + document.leftMargin(),
	                               document.bottom() - 10, 0);
	    if (j != 1)
	    {
	    	PdfPTable headerTable = new PdfPTable(2);
	        headerTable.setTotalWidth(700);
	        headerTable.getDefaultCell().setFixedHeight(10);
	        headerTable.getDefaultCell().setBorder(Rectangle.NO_BORDER);
	        headerTable.getDefaultCell().setPadding(1); // Added!
	        headerTable.getDefaultCell().setHorizontalAlignment(Element.ALIGN_LEFT);
	        headerTable.addCell(new Phrase(String.format(header1), ffont));
	        headerTable.getDefaultCell().setHorizontalAlignment(Element.ALIGN_RIGHT);
	        headerTable.addCell(new Phrase(String.format(header2), ffont));
	        headerTable.getDefaultCell().setHorizontalAlignment(Element.ALIGN_LEFT);
	        headerTable.addCell(new Phrase(String.format(header3), ffont));
	        headerTable.getDefaultCell().setHorizontalAlignment(Element.ALIGN_LEFT);
	        headerTable.addCell(new Phrase(String.format(header5, j), ffont));
	        headerTable.completeRow();
	        headerTable.writeSelectedRows(0, 5, 60.5f, 550, stamp.getUnderContent());
	    }

	    stamp.alterContents();
	    copy.addPage(page);
	}
	document.close();
}
 

private static File copyToMultiplePages(final CropDefinition cropDefinition,
                                        final PdfMetaInformation pdfMetaInformation) throws IOException, DocumentException {

    PdfReader reader = new PdfReader(cropDefinition.getSourceFile().getAbsolutePath());
    HashMap<String, String> map = SimpleNamedDestination.getNamedDestination(reader, false);
    Document document = new Document();

    File resultFile = File.createTempFile("cropped", ".pdf");
    PdfSmartCopy pdfCopy = new PdfSmartCopy(document, new FileOutputStream(resultFile));
    document.open();

    Map<Integer, List<String>> pageNrToDestinations = new HashMap<Integer, List<String>>();
    for (String single : map.keySet()) {
        StringTokenizer st = new StringTokenizer(map.get(single), " ");
        if (st.hasMoreElements()) {
            String pageNrString = (String) st.nextElement();
            int pageNr = Integer.parseInt(pageNrString);
            List<String> singleList = (pageNrToDestinations.get(pageNr));
            if (singleList == null) {
                singleList = new ArrayList<String>();
                singleList.add(single);
                pageNrToDestinations.put(pageNr, singleList);
            } else {
                singleList.add(single);
            }
        }
    }

    int outputPageNumber = 0;
    for (int pageNumber = 1; pageNumber <= pdfMetaInformation.getSourcePageCount(); pageNumber++) {

        PdfImportedPage pdfPage = pdfCopy.getImportedPage(reader, pageNumber);

        pdfCopy.addPage(pdfPage);
        outputPageNumber++;
        List<String> destinations = pageNrToDestinations.get(pageNumber);
        if (destinations != null) {
            for (String destination : destinations)
                pdfCopy.addNamedDestination(destination, outputPageNumber, new PdfDestination(PdfDestination.FIT));
        }
        List<Float[]> rectangles = cropDefinition.getRectanglesForPage(pageNumber);
        for (int j = 1; j < rectangles.size(); j++) {
            pdfCopy.addPage(pdfPage);
            outputPageNumber++;
        }
    }
    document.close();
    pdfCopy.close();
    reader.close();
    return resultFile;
}