Java Code Examples for com.itextpdf.text.pdf.PdfStamper#close()

/**
 * The OP's original code transformed into Java
 */
void stampTextOriginal(InputStream source, OutputStream target) throws DocumentException, IOException
{
    Date today = new Date();
    PdfReader reader = new PdfReader(source);
    PdfStamper stamper = new PdfStamper(reader, target);
    BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA_BOLD, BaseFont.WINANSI, BaseFont.EMBEDDED);
    int tSize = 24;
    String mark = "DRAFT " + today;
    int angle = 45;
    float height = reader.getPageSizeWithRotation(1).getHeight()/2;
    float width = reader.getPageSizeWithRotation(1).getWidth()/2;
    PdfContentByte cb = stamper.getOverContent(1);
    cb.setColorFill(new BaseColor(255,200,200));
    cb.setFontAndSize(bf, tSize);
    cb.beginText();
    cb.showTextAligned(Element.ALIGN_CENTER, mark, width, height, angle);
    cb.endText();
    stamper.close();
    reader.close();
}
 

@Test
public void testRemoveTransparentGraphicsTransparency() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("transparency.pdf");
            OutputStream result = new FileOutputStream(new File(RESULT_FOLDER, "transparency-noTransparency.pdf")))
    {
        PdfReader pdfReader = new PdfReader(resource);
        PdfStamper pdfStamper = new PdfStamper(pdfReader, result);
        PdfContentStreamEditor editor = new TransparentGraphicsRemover();

        for (int i = 1; i <= pdfReader.getNumberOfPages(); i++)
        {
            editor.editPage(pdfStamper, i);
        }
        
        pdfStamper.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/43205385/trying-to-draw-an-ellipse-annotation-and-the-border-on-the-edges-goes-thin-and-t">
 * Trying to draw an ellipse annotation and the border on the edges goes thin and thik when i try to roatate pdf itext5
 * </a>
 * <p>
 * This test creates an ellipse annotation without appearance on a page without rotation. Everything looks ok.
 * </p>
 * @see #testCreateEllipseAppearance()
 * @see #testCreateEllipseOnRotated()
 * @see #testCreateEllipseAppearanceOnRotated()
 * @see #testCreateCorrectEllipseAppearanceOnRotated()
 */
@Test
public void testCreateEllipse() throws IOException, DocumentException
{
    try (   InputStream resourceStream = getClass().getResourceAsStream("/mkl/testarea/itext5/merge/testA4.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "testA4-ellipse.pdf"))    )
    {
        PdfReader reader = new PdfReader(resourceStream);
        PdfStamper stamper = new PdfStamper(reader, outputStream);

        Rectangle rect = new Rectangle(202 + 6f, 300, 200 + 100, 300 + 150);

        PdfAnnotation annotation = PdfAnnotation.createSquareCircle(stamper.getWriter(), rect, null, false);
        annotation.setFlags(PdfAnnotation.FLAGS_PRINT);
        annotation.setColor(BaseColor.RED);
        annotation.setBorderStyle(new PdfBorderDictionary(3.5f, PdfBorderDictionary.STYLE_SOLID));

        stamper.addAnnotation(annotation, 1);

        stamper.close();
        reader.close();
    }
}
 

private static void addOutlines(List<HashMap<String, Object>> outlines, String srcFile, String destFile) {
    try {
        class MyPdfReader extends PdfReader {
            public MyPdfReader(String fileName) throws IOException {
                super(fileName);
                unethicalreading = true;
                encrypted = false;
            }
        }
        PdfReader reader = new MyPdfReader(srcFile);
        PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(destFile));
        stamper.setOutlines(outlines);
        stamper.close();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}
 

/**
 * <a href="https://stackoverflow.com/questions/44304695/itext-5-5-11-bold-text-looks-blurry-after-using-pdfcleanupprocessor">
 * iText 5.5.11 - bold text looks blurry after using PdfCleanUpProcessor
 * </a>
 * <br/>
 * <a href="http://s000.tinyupload.com/index.php?file_id=52420782334200922303">
 * before.pdf
 * </a>
 * <p>
 * Indeed, the observation by the OP can be reproduced. The issue has been introduced
 * into iText in commits d5abd23 and 9967627, both dated May 4th, 2015.
 * </p>
 */
@Test
public void testRedactLikeTieco() throws DocumentException, IOException
{
    try (   InputStream resource = getClass().getResourceAsStream("before.pdf");
            OutputStream result = new FileOutputStream(new File(OUTPUTDIR, "before-redacted.pdf")) )
    {
        PdfReader reader = new PdfReader(resource);
        PdfStamper stamper = new PdfStamper(reader, result);
        List<PdfCleanUpLocation> cleanUpLocations = new ArrayList<PdfCleanUpLocation>();

        cleanUpLocations.add(new PdfCleanUpLocation(1, new Rectangle(0f, 0f, 595f, 680f)));

        PdfCleanUpProcessor cleaner = new PdfCleanUpProcessor(cleanUpLocations, stamper);
        cleaner.cleanUp();

        stamper.close();
        reader.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/34394199/i-cant-rotate-my-page-from-existing-pdf">
 * I can't rotate my page from existing PDF
 * </a>
 * <p>
 * Switching between portrait and landscape like this obviously will cut off some parts of the page.
 * </p>
 */
@Test
public void testSwitchOrientation() throws DocumentException, IOException
{
    try (InputStream resourceStream = getClass().getResourceAsStream("/mkl/testarea/itext5/extract/n2013.00849449.pdf"))
    {
        PdfReader reader = new PdfReader(resourceStream);
        int n = reader.getNumberOfPages();
        PdfDictionary pageDict;
        for (int i = 1; i <= n; i++) {
            Rectangle rect = reader.getPageSize(i);
            Rectangle crop = reader.getCropBox(i);
            pageDict = reader.getPageN(i);
            pageDict.put(PdfName.MEDIABOX, new PdfArray(new float[] {rect.getBottom(), rect.getLeft(), rect.getTop(), rect.getRight()}));
            pageDict.put(PdfName.CROPBOX, new PdfArray(new float[] {crop.getBottom(), crop.getLeft(), crop.getTop(), crop.getRight()}));
        }
        PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(new File(RESULT_FOLDER, "n2013.00849449-switch.pdf")));
        stamper.close();
        reader.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/43205385/trying-to-draw-an-ellipse-annotation-and-the-border-on-the-edges-goes-thin-and-t">
 * Trying to draw an ellipse annotation and the border on the edges goes thin and thik when i try to roatate pdf itext5
 * </a>
 * <p>
 * This test creates an ellipse annotation without appearance on a page with rotation.
 * The ellipse form looks ok but it is moved to the right of the actual appearance rectangle when viewed in Adobe Reader.
 * This is caused by iText creating a non-standard rectangle, the lower left not being the lower left etc.
 * </p>
 * @see #testCreateEllipse()
 * @see #testCreateEllipseAppearance()
 * @see #testCreateEllipseAppearanceOnRotated()
 * @see #testCreateCorrectEllipseAppearanceOnRotated()
 */
@Test
public void testCreateEllipseOnRotated() throws IOException, DocumentException
{
    try (   InputStream resourceStream = getClass().getResourceAsStream("/mkl/testarea/itext5/merge/testA4.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "testA4-rotated-ellipse.pdf"))    )
    {
        PdfReader reader = new PdfReader(resourceStream);
        reader.getPageN(1).put(PdfName.ROTATE, new PdfNumber(90));

        PdfStamper stamper = new PdfStamper(reader, outputStream);

        Rectangle rect = new Rectangle(202 + 6f, 300, 200 + 100, 300 + 150);

        PdfAnnotation annotation = PdfAnnotation.createSquareCircle(stamper.getWriter(), rect, null, false);
        annotation.setFlags(PdfAnnotation.FLAGS_PRINT);
        annotation.setColor(BaseColor.RED);
        annotation.setBorderStyle(new PdfBorderDictionary(3.5f, PdfBorderDictionary.STYLE_SOLID));

        stamper.addAnnotation(annotation, 1);

        stamper.close();
        reader.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/35374912/itext-cleaning-up-text-in-rectangle-without-cleaning-full-row">
 * iText - Cleaning Up Text in Rectangle without cleaning full row
 * </a>
 * <br/>
 * <a href="https://www.dropbox.com/s/3i7g4w85dvul6db/input.pdf?dl=0">
 * input.pdf
 * </a>
 * <p>
 * Cannot reproduce the OP's issue.
 * </p>
 */
@Test
public void testRedactJavishsInput() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("input.pdf");
            OutputStream result = new FileOutputStream(new File(OUTPUTDIR, "input-redactedJavish.pdf")) )
    {
        PdfReader reader = new PdfReader(resource);
        PdfStamper stamper = new PdfStamper(reader, result);

        List<Float> linkBounds = new ArrayList<Float>();
        linkBounds.add(0, (float) 200.7);
        linkBounds.add(1, (float) 547.3);
        linkBounds.add(2, (float) 263.3);
        linkBounds.add(3, (float) 558.4);

        Rectangle linkLocation1 = new Rectangle(linkBounds.get(0), linkBounds.get(1), linkBounds.get(2), linkBounds.get(3));
        List<PdfCleanUpLocation> cleanUpLocations = new ArrayList<PdfCleanUpLocation>();
        cleanUpLocations.add(new PdfCleanUpLocation(1, linkLocation1, BaseColor.GRAY));

        PdfCleanUpProcessor cleaner = new PdfCleanUpProcessor(cleanUpLocations, stamper);
        cleaner.cleanUp();

        stamper.close();
        reader.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/43205385/trying-to-draw-an-ellipse-annotation-and-the-border-on-the-edges-goes-thin-and-t">
 * Trying to draw an ellipse annotation and the border on the edges goes thin and thik when i try to roatate pdf itext5
 * </a>
 * <p>
 * This test creates an ellipse annotation with appearance with switched dimensions on a page with rotation.
 * Everything looks ok.
 * </p>
 * @see #testCreateEllipse()
 * @see #testCreateEllipseAppearance()
 * @see #testCreateEllipseOnRotated()
 * @see #testCreateEllipseAppearanceOnRotated()
 */
@Test
public void testCreateCorrectEllipseAppearanceOnRotated() throws IOException, DocumentException
{
    try (   InputStream resourceStream = getClass().getResourceAsStream("/mkl/testarea/itext5/merge/testA4.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "testA4-rotated-ellipse-appearance-correct.pdf"))    )
    {
        PdfReader reader = new PdfReader(resourceStream);
        reader.getPageN(1).put(PdfName.ROTATE, new PdfNumber(90));

        PdfStamper stamper = new PdfStamper(reader, outputStream);

        Rectangle rect = new Rectangle(202 + 6f, 300, 200 + 100, 300 + 150);

        PdfAnnotation annotation = PdfAnnotation.createSquareCircle(stamper.getWriter(), rect, null, false);
        annotation.setFlags(PdfAnnotation.FLAGS_PRINT);
        annotation.setColor(BaseColor.RED);
        annotation.setBorderStyle(new PdfBorderDictionary(3.5f, PdfBorderDictionary.STYLE_SOLID));

        PdfContentByte cb = stamper.getOverContent(1);
        PdfAppearance app = cb.createAppearance(rect.getHeight(), rect.getWidth());
        app.setColorStroke(BaseColor.RED);
        app.setLineWidth(3.5);
        app.ellipse( 1.5,  1.5, rect.getHeight() - 1.5, rect.getWidth() - 1.5);
        app.stroke();
        annotation.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, app);

        stamper.addAnnotation(annotation, 1);

        stamper.close();
        reader.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/38053804/itextsharp-cropping-pdf-with-images-throws-exception">
 * iTextSharp - Cropping PDF with images throws exception
 * </a>
 * <br/>
 * <a href="https://www.dropbox.com/s/i76q8j1n5b0kdtv/1.pdf?dl=0">
 * 1.pdf
 * </a>, as Narek-1.pdf here
 * <p>
 * Indeed, there is an exception reading this image from PDF.
 * </p>
 */
@Test
public void testRedactNarek_1() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("Narek-1.pdf");
            OutputStream result = new FileOutputStream(new File(OUTPUTDIR, "Narek-1-redacted.pdf")) )
    {
        PdfReader reader = new PdfReader(resource);
        PdfStamper stamper = new PdfStamper(reader, result);
        redactLikeNarek(stamper);
        stamper.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/38498431/how-to-remove-filtered-content-from-a-pdf-with-itext">
 * How to remove filtered content from a PDF with iText
 * </a>
 * <br/>
 * <a href="https://1drv.ms/b/s!AmNST-TRoPSemi2k0UnGFsjQM1Yt">
 * document.pdf
 * </a>
 * <p>
 * This test shows how to remove text filtered by font size. The filter
 * condition given by the OP, i.e. any text drawn using a font whose
 * name ends with "BoldMT", had turned out to match more often than
 * desired, cf. {@link #testRemoveBoldMTTextDocument()}.
 * </p>
 */
@Test
public void testRemoveBigTextDocument() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("document.pdf");
            OutputStream result = new FileOutputStream(new File(RESULT_FOLDER, "document-noBigText.pdf")))
    {
        PdfReader pdfReader = new PdfReader(resource);
        PdfStamper pdfStamper = new PdfStamper(pdfReader, result);
        PdfContentStreamEditor editor = new PdfContentStreamEditor()
        {
            @Override
            protected void write(PdfContentStreamProcessor processor, PdfLiteral operator, List<PdfObject> operands) throws IOException
            {
                String operatorString = operator.toString();

                if (TEXT_SHOWING_OPERATORS.contains(operatorString))
                {
                    if (gs().getFontSize() > 100)
                        return;
                }
                
                super.write(processor, operator, operands);
            }

            final List<String> TEXT_SHOWING_OPERATORS = Arrays.asList("Tj", "'", "\"", "TJ");
        };

        for (int i = 1; i <= pdfReader.getNumberOfPages(); i++)
        {
            editor.editPage(pdfStamper, i);
        }
        
        pdfStamper.close();
    }
}
 

/**
 * pdf 用文字加水印，存在问题，如何支持中文
 * @author eko.zhan at 2018年9月2日 下午1:44:40
 * @throws FileNotFoundException
 * @throws IOException
 * @throws DocumentException
 */
@Test
public void testVisioAsPdfWithText() throws FileNotFoundException, IOException, DocumentException{
	File inputFile = new File("E:/ConvertTester/TestFiles/I_am_a_vsdx.vsdx");
	File outputFile = new File("E:/ConvertTester/TestFiles/I_am_a_vsdx_libreoffice.pdf");
	if (!outputFile.exists()) {
		convert(inputFile, outputFile);
	}
	File destFile = new File("E:/ConvertTester/TestFiles/I_am_a_vsdx_libreoffice_watermark.pdf");
	//转换成 pdf 后利用 itext 加水印 
	PdfReader reader = new PdfReader(new FileInputStream(outputFile));
	PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(destFile));
	int pageNo = reader.getNumberOfPages();
	Font f = new Font(FontFamily.HELVETICA, 28);
	Phrase p = new Phrase("Xiaoi Robot", f);
	for (int i=1;i<=pageNo;i++) {
		PdfContentByte over = stamper.getOverContent(i);
		over.saveState();
		PdfGState gs1 = new PdfGState();
		gs1.setFillOpacity(0.5f);
		over.setGState(gs1);
		ColumnText.showTextAligned(over, Element.ALIGN_CENTER, p, 297, 450, 0);
		over.restoreState();
	}
	stamper.close();
	reader.close();
}
 

/**
 * <a href="http://stackoverflow.com/questions/41183349/pdf-file-size-is-largely-increased-when-copied-using-itext-java-library">
 * pdf file size is largely increased when copied using itext java library
 * </a>
 * <br/>
 * <a href="https://www.pdfill.com/download/AcroJS.pdf">
 * AcroJS.pdf
 * </a>
 * <p>
 * Using full compression is much more compressed than the original.
 * </p>
 */
@Test
public void testStampAcroJSCompressed() throws DocumentException, IOException
{
    try (   InputStream resourceStream = getClass().getResourceAsStream("AcroJS.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "AcroJS-stamped-compressed.pdf"))    )
    {
        PdfReader reader = new PdfReader(resourceStream);
        PdfStamper stamper = new PdfStamper(reader, outputStream);
        stamper.setFullCompression();

        stamper.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/38498431/how-to-remove-filtered-content-from-a-pdf-with-itext">
 * How to remove filtered content from a PDF with iText
 * </a>
 * <br/>
 * <a href="https://1drv.ms/b/s!AmNST-TRoPSemi2k0UnGFsjQM1Yt">
 * document.pdf
 * </a>
 * <p>
 * This test shows how to remove text matching the filter condition given
 * by the OP, i.e. any text drawn using a font whose name ends with "BoldMT".
 * </p>
 * <p>
 * This works well, too good actually, as some table headers also use a
 * "BoldMT" font and, therefore, also vanish. As an alternative look at
 * {@link #testRemoveBigTextDocument()} which simply uses the font size
 * as filter condition.
 * </p>
 */
@Test
public void testRemoveBoldMTTextDocument() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("document.pdf");
            OutputStream result = new FileOutputStream(new File(RESULT_FOLDER, "document-noBoldMTText.pdf")))
    {
        PdfReader pdfReader = new PdfReader(resource);
        PdfStamper pdfStamper = new PdfStamper(pdfReader, result);
        PdfContentStreamEditor editor = new PdfContentStreamEditor()
        {
            @Override
            protected void write(PdfContentStreamProcessor processor, PdfLiteral operator, List<PdfObject> operands) throws IOException
            {
                String operatorString = operator.toString();

                if (TEXT_SHOWING_OPERATORS.contains(operatorString))
                {
                    if (gs().getFont().getPostscriptFontName().endsWith("BoldMT"))
                        return;
                }
                
                super.write(processor, operator, operands);
            }

            final List<String> TEXT_SHOWING_OPERATORS = Arrays.asList("Tj", "'", "\"", "TJ");
        };

        for (int i = 1; i <= pdfReader.getNumberOfPages(); i++)
        {
            editor.editPage(pdfStamper, i);
        }
        
        pdfStamper.close();
    }
}
 

@Test
public void testOP() throws IOException, DocumentException
{
    System.out.println("\nTHE OP's CODE");

    InputStream resourceStream = getClass().getResourceAsStream("Final PADR Release.pdf");
    try
    {
        // The resulting PDF file
        String RESULT = "target/test-outputs/extract/Final PADR Release 1.pdf";

        // Create a reader
        PdfReader reader = new PdfReader(resourceStream);

        // Create a stamper
        PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(RESULT));

        // Loop over the pages and add a footer to each page
        int n = reader.getNumberOfPages();

        for (int i = 2; i <= n; i++)
        {
            Collection<Rectangle2D> rectangles = find(reader, 300, 100, i); // FIX: i was n before

            Iterator<Rectangle2D> itr = rectangles.iterator();
            while (itr.hasNext())
            {
                System.out.println(itr.next());
            }

            if (!(rectangles.isEmpty()) && (rectangles.size() != 0))
            {
                Rectangle2D best = null;
                double bestDist = Double.MAX_VALUE;

                Point2D.Double point = new Point2D.Double(200, 400);

                float x = 0, y = 0;

                for (Rectangle2D rectangle : rectangles)
                {
                    double distance = distance(rectangle, point);

                    if (distance < bestDist)
                    {
                        best = rectangle;

                        bestDist = distance;

                        x = (float) best.getX();

                        y = (float) best.getMaxY(); // FIX: was getY

                        int left = (int) best.getMinX();

                        int right = (int) best.getMaxX();

                        int top = (int) best.getMaxY();

                        int bottom = (int) best.getMinY();

                        System.out.println("x : " + x);
                        System.out.println("y : " + y);
                        System.out.println("left : " + left);
                        System.out.println("right : " + right);
                        System.out.println("top : " + top);
                        System.out.println("bottom : " + bottom);

                    }
                }

                getFooterTable(i, n).writeSelectedRows(0, -1, x, y, stamper.getOverContent(i));
            }

            else
            {
                System.err.println("No free space found here");
                getFooterTable(i, n).writeSelectedRows(0, -1, 94, 140, stamper.getOverContent(i));
            }
        }

        // Close the stamper
        stamper.close();

        // Close the reader
        reader.close();
    }
    finally
    {
        if (resourceStream != null)
            resourceStream.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/32445174/missing-deselected-display-items-at-the-beginning-of-the-list-box-itextsharp">
 * Missing deselected display items at the beginning of the list box (iTextSharp)
 * </a>
 * <br/>
 * <a href="http://stackoverflow.com/questions/37587703/deselected-display-items-missing-at-the-beginning-of-the-list-box-itextsharp">
 * Deselected display items missing at the beginning of the list box (iTextSharp)
 * </a>
 * 
 * <p>
 * This is the equivalent code to the OP's VB .Net code.
 * </p>
 * <p>
 * Indeed, "One" is invisible at first. As a fix, set the VisibleTopChoice.
 * </p>
 */
@Test
public void testAddLikeNickK() throws IOException, DocumentException
{
    File myFile = new File(RESULT_FOLDER, "test-multiSelectBox.pdf");
    
    Rectangle newRect = new Rectangle(231.67f, 108.0f, 395.67f, 197.0f);
    String newFldName = "ListBox1";
    int pg = 1;

    try (   InputStream resource = getClass().getResourceAsStream("/mkl/testarea/itext5/extract/test.pdf");
            OutputStream output = new FileOutputStream(myFile)  )
    {
        PdfReader pdfReader = new PdfReader(resource);
        PdfStamper stamper = new PdfStamper(pdfReader, output);
        
        TextField txtField = new TextField(stamper.getWriter(), newRect, newFldName);
        txtField.setTextColor(BaseColor.BLACK);
        txtField.setBackgroundColor(BaseColor.WHITE);
        txtField.setBorderColor(BaseColor.BLACK);
        txtField.setFieldName(newFldName);
        txtField.setAlignment(0); //LEFT
        txtField.setBorderStyle(0); //SOLID
        txtField.setBorderWidth(1.0F); //THIN
        txtField.setVisibility(TextField.VISIBLE);
        txtField.setRotation(0); //None
        txtField.setBox(newRect);
        //PdfArray opt = new PdfArray();
        List<String> ListBox_ItemDisplay = new ArrayList<String>();
        ListBox_ItemDisplay.add("One");
        ListBox_ItemDisplay.add("Two");
        ListBox_ItemDisplay.add("Three");
        ListBox_ItemDisplay.add("Four");
        ListBox_ItemDisplay.add("Five");
        List<String> ListBox_ItemValue = new ArrayList<String>();
        ListBox_ItemValue.add("1X");
        ListBox_ItemValue.add("2X");
        ListBox_ItemValue.add("3X");
        ListBox_ItemValue.add("4X");
        ListBox_ItemValue.add("5X");
        txtField.setOptions(txtField.getOptions() | TextField.MULTISELECT);
        ArrayList<Integer> selIndex = new ArrayList<Integer>();
        //List<String> selValues = new ArrayList<String>();
        selIndex.add(1); // SELECT #1 (index)
        selIndex.add(3); // SELECT #3 (index)
        txtField.setChoices(ListBox_ItemDisplay.toArray(new String[0]));
        txtField.setChoiceExports(ListBox_ItemValue.toArray(new String[0]));
        txtField.setChoiceSelections(selIndex);
        // vvv--- Add this line as a fix
        txtField.setVisibleTopChoice(0);
        // ^^^--- Add this line as a fix
        PdfFormField listField = txtField.getListField();
        stamper.addAnnotation(listField, pg);

        stamper.close();
    }
}
 

/**
 * <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/38605538/itextpdf-redaction-partly-redacted-text-string-is-fully-removed">
 * itextpdf Redaction :Partly redacted text string is fully removed
 * </a>
 * <br/>
 * <a href="https://drive.google.com/file/d/0B42NqA5UnXMVMDc4MnE5VmU5YVk/view">
 * Document.pdf
 * </a>
 * <p>
 * This test applies the redaction using the {@link StrictPdfCleanUpProcessor}
 * which in contrast to the {@link PdfCleanUpProcessor} causes only text to be
 * removed if it is <b>completely</b> inside the redaction zone . The original
 * removes also text located merely <b>partially</b> inside the redaction zone.
 * Furthermore this test uses a larger redaction zone to check whether text
 * completely contained in the redaction zone really is removed.
 * </p>
 * <p>
 * This might more correspond to what the OP desires.
 * </p>
 * @see #testRedactLikeMayankPandey()
 * @see #testRedactStrictForMayankPandey()
 */
@Test
public void testRedactStrictForMayankPandeyLarge() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("Document.pdf");
            OutputStream result = new FileOutputStream(new File(OUTPUTDIR, "Document-redacted-strict-large.pdf")) )
    {
        PdfReader reader = new PdfReader(resource);
        StrictPdfCleanUpProcessor cleaner= null;
        PdfStamper stamper = new PdfStamper(reader, result);
        stamper.setRotateContents(false);
        List<mkl.testarea.itext5.pdfcleanup.PdfCleanUpLocation> cleanUpLocations = new ArrayList<>();
        Rectangle rectangle = new Rectangle(380, 640, 430, 680);
        cleanUpLocations.add(new mkl.testarea.itext5.pdfcleanup.PdfCleanUpLocation(1, rectangle, BaseColor.BLACK));
        cleaner = new StrictPdfCleanUpProcessor(cleanUpLocations, stamper);   
        cleaner.cleanUp();
        stamper.close();
        reader.close();
    }
}
 

/**
 * <a href = "http://stackoverflow.com/questions/28898636/itextpdf-stop-transform-pdf-correctly">
 * Itextpdf stop transform pdf correctly
 * </a>
 * <p>
 * <a href="https://drive.google.com/file/d/0B3-DPMN-iMOmNjItRVJ4MHRZX3M/view?usp=sharing">
 * template.pdf
 * </a>
 * <p>
 * ... as it turned out, the problem was not an iText issue at all; in the OP's web application
 * the template.pdf had already been mangled by maven resource filtering.
 * </p>
 */
@Test
public void testStampTemplate() throws DocumentException, IOException
{
    try (   InputStream resourceStream = getClass().getResourceAsStream("template.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "test.pdf"))    )
    {
        PdfReader reader = new PdfReader(resourceStream);
        PdfStamper stamper = new PdfStamper(reader, outputStream);

        stamper.close();
    }
}
 

/**
 * <p>
 * This test spawns a new page from a signed PDF; the template page had
 * been named before signing.
 * </p>
 * <p>
 * Unfortunately Adobe Acrobat Reader considers signatures broken after
 * page templates have been spawned unless the page template form xobject
 * has the same size after compression (!!) as if compressed by the Reader
 * itself. As different implementations of the deflate compression result
 * in different stream sizes, this makes it difficult to use this feature.
 * Furthermore, I don't see this size test backed by the PDF specification.
 * </p>
 * <p>
 * In case of the file "pdfa-named-signed-spawned.pdf" created by this test,
 * the length of the stream object 82 needs to be patched to 162 from the
 * 159 generated by iText.
 * </p>
 */
@Test
public void testSpawnPdfaNamedSigned() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("pdfa-named-signed.pdf");
            OutputStream target = new FileOutputStream(new File(RESULT_FOLDER, "pdfa-named-signed-spawned.pdf")) )
    {
        PdfReader pdfReader = new PdfReader(resource);
        PdfStamper pdfStamper = new PdfStamper(pdfReader, target, '\0', true);
        PdfStamperHelper.spawnTemplate(pdfStamper, "myTemplate0", 3);
        pdfStamper.close();
    }
}