Java PdfReader.close方法代碼示例

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
private String getPdfContent(String pdfFile) {
	try {
		PdfReader reader = new PdfReader(pdfFile);
		StringBuffer sb = new StringBuffer();
		PdfReaderContentParser parser = new PdfReaderContentParser(reader);
		TextExtractionStrategy strategy;
		for (int i = 1; i <= reader.getNumberOfPages(); i++) {
			strategy = parser.processContent(i, new SimpleTextExtractionStrategy());
			sb.append(strategy.getResultantText());
		}
		reader.close();
		return sb.toString();
	} catch (IOException e) {
		throw new IllegalArgumentException("Not able to read file " + pdfFile, e);
	}
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
/**
 * <a href="http://stackoverflow.com/questions/28991291/how-to-remove-whitespace-on-merge">
 * How To Remove Whitespace on Merge
 * </a>
 * <p>
 * Testing {@link PdfDenseMergeTool} using the OP's files.
 * </p>
 */
@Test
public void testMergeGrandizerFiles() throws DocumentException, IOException
{
    try (   InputStream docA = getClass().getResourceAsStream("Header.pdf");
            InputStream docB = getClass().getResourceAsStream("Body.pdf");
            InputStream docC = getClass().getResourceAsStream("Footer.pdf");    )
    {
        PdfDenseMergeTool tool = new PdfDenseMergeTool(PageSize.A4, 18, 18, 5);
        PdfReader readerA = new PdfReader(docA);
        PdfReader readerB = new PdfReader(docB);
        PdfReader readerC = new PdfReader(docC);
        try (FileOutputStream fos = new FileOutputStream(new File(RESULT_FOLDER, "GrandizerMerge.pdf")))
        {
            List<PdfReader> inputs = Arrays.asList(readerA, readerB, readerC);
            tool.merge(fos, inputs);
        }
        finally
        {
            readerA.close();
            readerB.close();
            readerC.close();
        }
    }

}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
/**
 * The <code>closePassedStream</code> method closes the stream passed.
 * 
 * @param reader {@link PdfReader}
 * @param document {@link Document}
 * @param contentByte {@link PdfContentByte}
 * @param writer {@link PdfWriter}
 * @param fileInputStream {@link FileInputStream}
 * @param fileOutputStream {@link FileOutputStream}
 * @throws IOException {@link} if unable to close input or output stream
 */
private static void closePassedStream(final PdfReader reader, final Document document,
		final PdfContentByte contentByte, final PdfWriter writer,
		final FileInputStream fileInputStream, final FileOutputStream fileOutputStream) throws IOException {
	if (null != reader) {
		reader.close();
	} 
	if (null != document) {
		document.close();
	}
	if (null != contentByte) {
		contentByte.closePath();
	}
	if (null != writer) {
		writer.close();
	}
	if (null != fileInputStream) {
		fileInputStream.close();
	}
	
	if (null != fileOutputStream) {
		fileOutputStream.flush();
		fileOutputStream.close();
	}
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
/**
 * <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();
    }
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
/**
 * The OP's code transformed into Java changed with the work-around.
 */
void stampTextChanged(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.setFontAndSize(bf, tSize);
    cb.beginText();
    cb.setColorFill(new BaseColor(255,200,200));
    cb.showTextAligned(Element.ALIGN_CENTER, mark, width, height, angle);
    cb.endText();
    stamper.close();
    reader.close();
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
/**
 * <a href="https://stackoverflow.com/questions/45351357/how-to-decrypt-128bit-rc4-pdf-file-in-java-with-user-password-if-it-is-encrpted">
 * How to decrypt 128bit RC4 pdf file in java with user password if it is encrpted with user as well as owner password
 * </a>
 * <br/>
 * <a href="https://www.dropbox.com/s/pc74oox4y19awin/abc.pdf?dl=0">
 * abc.pdf
 * </a>
 * <p>
 * This code shows how to decrypt an encrypted PDF for which you have the
 * user password, not the owner password. The procedure is closely related
 * to <a href="https://stackoverflow.com/a/27876840/1729265">Bruno's answer
 * here</a>.
 * </p> 
 */
@Test
public void testDecryptAbc() throws IOException, DocumentException, NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException
{
    try (   InputStream inputStream = getClass().getResourceAsStream("abc.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "abc-decrypted.pdf"))    )
    {
        PdfReader.unethicalreading = true;
        PdfReader reader = new PdfReader(inputStream, "abc123".getBytes());

        Field encryptedField = PdfReader.class.getDeclaredField("encrypted");
        encryptedField.setAccessible(true);
        encryptedField.set(reader, false);

        PdfStamper stamper = new PdfStamper(reader, outputStream);
        stamper.close();
        reader.close();
    }
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
/**
 * <a href="http://stackoverflow.com/questions/38278816/remove-header-of-a-pdf-using-itext-pdfcleanupprocessor-does-not-work">
 * Remove header of a pdf using iText PdfCleanUpProcessor does not work
 * </a>
 * <br/>
 * <a href="https://www.dropbox.com/s/4u8vupjqc4st3ib/love.pdf?dl=0">
 * love.pdf
 * </a>
 * <p>
 * Cannot reproduce, I get a <code>org.apache.commons.imaging.ImageReadException: Invalid marker found in entropy data</code>.
 * </p>
 */
@Test
public void testRedactLikeShiranSEkanayake() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("love.pdf");
            OutputStream result = new FileOutputStream(new File(OUTPUTDIR, "love-redacted.pdf")) )
    {
        PdfReader reader = new PdfReader(resource);
        PdfStamper stamper = new PdfStamper(reader, result);
        List<PdfCleanUpLocation> cleanUpLocations = new ArrayList<PdfCleanUpLocation>();

        for(int i=1; i<=reader.getNumberOfPages(); i++)
        {
                //System.out.println(i);
                Rectangle mediabox = reader.getPageSize(i); 
                cleanUpLocations.add(new PdfCleanUpLocation(i, new Rectangle(0,800,1000,1000)));
        }
        PdfCleanUpProcessor cleaner = new PdfCleanUpProcessor(cleanUpLocations, stamper);
        cleaner.cleanUp();
        stamper.close();
        reader.close(); 
    }
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
void mark(InputStream input, OutputStream output, Pattern pattern) throws DocumentException, IOException
{
    PdfReader reader = new PdfReader(input);
    PdfStamper stamper = new PdfStamper(reader, output);
    try {
        PdfReaderContentParser parser = new PdfReaderContentParser(reader);
        for (int pageNr = 1; pageNr <= reader.getNumberOfPages(); pageNr++)
        {
            SearchTextLocationExtractionStrategy strategy = new SearchTextLocationExtractionStrategy(pattern);
            parser.processContent(pageNr, strategy, Collections.emptyMap()).getResultantText();
            Collection<TextRectangle> locations = strategy.getLocations(null);
            if (locations.isEmpty())
                continue;

            PdfContentByte canvas = stamper.getOverContent(pageNr);
            canvas.setRGBColorStroke(255, 255, 0);
            for (TextRectangle location : locations)
            {
                canvas.rectangle(location.getMinX(), location.getMinY(), location.getWidth(), location.getHeight());
            }
            canvas.stroke();
        }
        stamper.close();
    } finally {
        reader.close();
    }
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
/**
 * <a href="http://stackoverflow.com/questions/28991291/how-to-remove-whitespace-on-merge">
 * How To Remove Whitespace on Merge
 * </a>
 * <p>
 * Testing {@link PdfVeryDenseMergeTool} using the OP's files.
 * </p>
 */
@Test
public void testMergeGrandizerFiles() throws DocumentException, IOException
{
    try (   InputStream docA = getClass().getResourceAsStream("Header.pdf");
            InputStream docB = getClass().getResourceAsStream("Body.pdf");
            InputStream docC = getClass().getResourceAsStream("Footer.pdf");    )
    {
        PdfVeryDenseMergeTool tool = new PdfVeryDenseMergeTool(PageSize.A4, 18, 18, 5);
        PdfReader readerA = new PdfReader(docA);
        PdfReader readerB = new PdfReader(docB);
        PdfReader readerC = new PdfReader(docC);
        try (FileOutputStream fos = new FileOutputStream(new File(RESULT_FOLDER, "GrandizerMerge-veryDense.pdf")))
        {
            List<PdfReader> inputs = Arrays.asList(readerA, readerB, readerC);
            tool.merge(fos, inputs);
        }
        finally
        {
            readerA.close();
            readerB.close();
            readerC.close();
        }
    }
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
@Test(expected = IOException.class)
public void fileNotFound() throws IOException {
	try {
		PdfReader reader = new PdfReader("noLetter");
		reader.close();
	} catch (IOException e) {
		throw e;
	}

}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
/**
 * <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/zeljo2k8tly7yqi/Test1.pdf?dl=0">
 * Test1.pdf
 * </a>
 * <p>
 * With this new file the issue could be reproduced, indeed an iText issue.
 * </p>
 */
@Test
public void testRedactJavishsTest1() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("Test1.pdf");
            OutputStream result = new FileOutputStream(new File(OUTPUTDIR, "Test1-redactedJavish.pdf")) )
    {
        PdfReader reader = new PdfReader(resource);
        PdfStamper stamper = new PdfStamper(reader, result);

        List<Float> linkBounds = new ArrayList<Float>();
        linkBounds.add(0, (float) 202.3);
        linkBounds.add(1, (float) 588.6);
        linkBounds.add(2, (float) 265.8);
        linkBounds.add(3, (float) 599.7);

        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();
    }
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
public static CropJob createCropJob(File source) throws IOException {
	CropJob result = null;
	if (source != null && source.exists()) {
		PdfReader reader = new PdfReader(source.getAbsolutePath());
		result = new CropJob(source, reader.getNumberOfPages(), reader.getInfo(), SimpleBookmark.getBookmark(reader));
		reader.close();
		return result;
	}
	return result;
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
/**
 * <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 on a page with rotation.
 * The ellipse position looks ok but it is deformed.
 * This is caused by iText rotating the annotation rectangle but not (how could it?) the appearance rectangle.
 * </p>
 * @see #testCreateEllipse()
 * @see #testCreateEllipseAppearance()
 * @see #testCreateEllipseOnRotated()
 * @see #testCreateCorrectEllipseAppearanceOnRotated()
 */
@Test
public void testCreateEllipseAppearanceOnRotated() 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.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.getWidth(), rect.getHeight());
        app.setColorStroke(BaseColor.RED);
        app.setLineWidth(3.5);
        app.ellipse( 1.5,  1.5, rect.getWidth() - 1.5, rect.getHeight() - 1.5);
        app.stroke();
        annotation.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, app);

        stamper.addAnnotation(annotation, 1);

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

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
static byte[] cleanUp(byte[] source, List<PdfCleanUpLocation> cleanUpLocations) throws IOException, DocumentException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    PdfReader reader = new PdfReader(source);
    PdfStamper stamper = new PdfStamper(reader, baos);
    PdfCleanUpProcessor cleaner = new PdfCleanUpProcessor(cleanUpLocations, stamper);
    cleaner.cleanUp();
    stamper.close();
    reader.close();
    
    return baos.toByteArray();
}
 

import com.itextpdf.text.pdf.PdfReader; //導入方法依賴的package包/類
public PdfMetaInformation(final File source) throws IOException {
	PdfReader reader = new PdfReader(source.getAbsolutePath());
	this.sourcePageCount = reader.getNumberOfPages();
	this.sourceMetaInfo = reader.getInfo();
	this.sourceBookmarks = SimpleBookmark.getBookmark(reader);
	reader.close();

}