Java PdfDictionary.getAsArray方法代码示例

import com.itextpdf.text.pdf.PdfDictionary; //导入方法依赖的package包/类
/**
 * These two methods ({@link #extractAttachments(PdfReader, String)} and
 * {@link #extractAttachment(PdfReader, File, PdfString, PdfDictionary)})
 * essentially are the OP's original code posted in his question. They
 * extract files without the folder structure.
 */
public static void extractAttachments(PdfReader reader, String dir) throws IOException
{
    File folder = new File(dir);
    folder.mkdirs();

    PdfDictionary root = reader.getCatalog();

    PdfDictionary names = root.getAsDict(PdfName.NAMES);
    System.out.println("" + names.getKeys().toString());
    PdfDictionary embedded = names.getAsDict(PdfName.EMBEDDEDFILES);
    System.out.println("" + embedded.toString());

    PdfArray filespecs = embedded.getAsArray(PdfName.NAMES);

    //System.out.println(filespecs.getAsString(root1));
    for (int i = 0; i < filespecs.size();)
    {
        extractAttachment(reader, folder, filespecs.getAsString(i++), filespecs.getAsDict(i++));
    }
}
 

import com.itextpdf.text.pdf.PdfDictionary; //导入方法依赖的package包/类
/**
 * <p>
 * These two methods ({@link #extractAttachmentsWithFolders(PdfReader, String)} and
 * {@link #extractAttachment(PdfReader, Map, PdfString, PdfDictionary)}) extend the
 * functionality of the OP's original code posted in his question. They extract files
 * with the folder structure.
 * </p>
 * <p>
 * The information concerning the portfolio folder structure is retrieved using
 * the method {@link #retrieveFolders(PdfReader, File)} and its helper method
 * {@link #collectFolders(Map, PdfDictionary, File)}.
 * </p>
 */
public static void extractAttachmentsWithFolders(PdfReader reader, String dir) throws IOException, DocumentException
{
    File folder = new File(dir);
    folder.mkdirs();

    Map<Integer, File> folders = retrieveFolders(reader, folder);

    PdfDictionary root = reader.getCatalog();

    PdfDictionary names = root.getAsDict(PdfName.NAMES);
    System.out.println("" + names.getKeys().toString());
    PdfDictionary embedded = names.getAsDict(PdfName.EMBEDDEDFILES);
    System.out.println("" + embedded.toString());

    PdfArray filespecs = embedded.getAsArray(PdfName.NAMES);

    for (int i = 0; i < filespecs.size();)
    {
        extractAttachment(reader, folders, folder, filespecs.getAsString(i++), filespecs.getAsDict(i++));
    }
}
 

import com.itextpdf.text.pdf.PdfDictionary; //导入方法依赖的package包/类
@Override
public void renderText(TextRenderInfo renderInfo)
{
    DocumentFont font =renderInfo.getFont();
    PdfDictionary dict = font.getFontDictionary();
    PdfDictionary encoding = dict.getAsDict(PdfName.ENCODING);
    PdfArray diffs = encoding.getAsArray(PdfName.DIFFERENCES);

    ;
    StringBuilder builder = new StringBuilder();
    for (byte b : renderInfo.getPdfString().getBytes())
    {
        PdfName name = diffs.getAsName((char)b);
        String s = name.toString().substring(2);
        int i = Integer.parseUnsignedInt(s, 16);
        builder.append((char)i);
    }

    try
    {
        stringField.set(renderInfo, builder.toString());
    }
    catch (IllegalArgumentException | IllegalAccessException e)
    {
        e.printStackTrace();
    }
    strategy.renderText(renderInfo);
}
 

import com.itextpdf.text.pdf.PdfDictionary; //导入方法依赖的package包/类
/**
 * <p>
 * A primitive attempt at copying links from page <code>sourcePage</code>
 * of <code>PdfReader reader</code> to page <code>targetPage</code> of
 * <code>PdfStamper stamper</code>.
 * </p>
 * <p>
 * This method is meant only for the use case at hand, i.e. copying a link
 * to an external URI without expecting any advanced features.
 * </p>
 */
void copyLinks(PdfStamper stamper, int targetPage, PdfReader reader, int sourcePage)
{
    PdfDictionary sourcePageDict = reader.getPageNRelease(sourcePage);
    PdfArray annotations = sourcePageDict.getAsArray(PdfName.ANNOTS);
    if (annotations != null && annotations.size() > 0)
    {
        for (PdfObject annotationObject : annotations)
        {
            annotationObject = PdfReader.getPdfObject(annotationObject);
            if (!annotationObject.isDictionary())
                continue;
            PdfDictionary annotation = (PdfDictionary) annotationObject;
            if (!PdfName.LINK.equals(annotation.getAsName(PdfName.SUBTYPE)))
                continue;

            PdfArray rectArray = annotation.getAsArray(PdfName.RECT);
            if (rectArray == null || rectArray.size() < 4)
                continue;
            Rectangle rectangle = PdfReader.getNormalizedRectangle(rectArray);

            PdfName hightLight = annotation.getAsName(PdfName.H);
            if (hightLight == null)
                hightLight = PdfAnnotation.HIGHLIGHT_INVERT;

            PdfDictionary actionDict = annotation.getAsDict(PdfName.A);
            if (actionDict == null || !PdfName.URI.equals(actionDict.getAsName(PdfName.S)))
                continue;
            PdfString urlPdfString = actionDict.getAsString(PdfName.URI);
            if (urlPdfString == null)
                continue;
            PdfAction action = new PdfAction(urlPdfString.toString());

            PdfAnnotation link = PdfAnnotation.createLink(stamper.getWriter(), rectangle, hightLight, action);
            stamper.addAnnotation(link, targetPage);
        }
    }
}
 

import com.itextpdf.text.pdf.PdfDictionary; //导入方法依赖的package包/类
void show(FdfReader fdfReader)
{
    PdfDictionary catalog = fdfReader.getCatalog();
    catalog = catalog.getAsDict(PdfName.FDF);
    Assert.assertNotNull("FDF catalogue is null", catalog);
    PdfArray annots = catalog.getAsArray(PdfName.ANNOTS);
    Assert.assertNotNull("FDF annotations are null", annots);
    System.out.println(annots);
}
 

import com.itextpdf.text.pdf.PdfDictionary; //导入方法依赖的package包/类
/**
 * <a href="http://stackoverflow.com/questions/31402602/how-to-rename-only-the-first-found-duplicate-acrofield-in-pdf">
 * How to rename only the first found duplicate acrofield in pdf?
 * </a>
 * <br>
 * <a href="http://s000.tinyupload.com/index.php?file_id=34970992934525199618">
 * test_duplicate_field2.pdf
 * </a>
 * <p>
 * Demonstration of how to transform generate a new field for a widget.
 * </p> 
 */
@Test
public void testWidgetToField() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("test_duplicate_field2.pdf");
            OutputStream result = new FileOutputStream(new File(RESULT_FOLDER, "test_duplicate_field2-widgetToField.pdf"))   )
    {
        PdfReader reader = new PdfReader(resource);

        PdfDictionary form = reader.getCatalog().getAsDict(PdfName.ACROFORM);
        PdfArray fields = form.getAsArray(PdfName.FIELDS);
        for (PdfObject object: fields)
        {
            PdfDictionary field = (PdfDictionary) PdfReader.getPdfObject(object);
            if ("Text1".equals(field.getAsString(PdfName.T).toString()))
            {
                PdfDictionary newField = new PdfDictionary();
                PRIndirectReference newFieldRef = reader.addPdfObject(newField);
                fields.add(newFieldRef);
                newField.putAll(field);
                newField.put(PdfName.T, new PdfString("foobar"));
                PdfArray newKids = new PdfArray();
                newField.put(PdfName.KIDS, newKids);
                PdfArray kids = field.getAsArray(PdfName.KIDS);
                PdfObject widget = kids.remove(0);
                newKids.add(widget);
                PdfDictionary widgetDict = (PdfDictionary) PdfReader.getPdfObject(widget);
                widgetDict.put(PdfName.PARENT, newFieldRef);
                break;
            }
        }

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

import com.itextpdf.text.pdf.PdfDictionary; //导入方法依赖的package包/类
/**
 * <a href="http://stackoverflow.com/questions/37275267/how-to-make-pdf-annotation-as-read-only-using-itext">
 * how to make pdf annotation as read only using itext?
 * </a>
 * <br/>
 * test-annotated.pdf <i>simple PDF with sticky note</i>
 * 
 * <p>
 * This test shows how to set the read-only flags of all annotations of a document.
 * </p>
 */
@Test
public void testMarkAnnotationsReadOnly() throws IOException, DocumentException
{
    try (   InputStream resourceStream = getClass().getResourceAsStream("test-annotated.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "test-annotated-ro.pdf"))    )
    {
        PdfReader reader = new PdfReader(resourceStream);
        PdfStamper stamper = new PdfStamper(reader, outputStream);

        for (int page = 1; page <= reader.getNumberOfPages(); page++)
        {
            PdfDictionary pageDictionary = reader.getPageN(page);
            PdfArray annotationArray = pageDictionary.getAsArray(PdfName.ANNOTS);
            if (annotationArray == null)
                continue;
            for (PdfObject object : annotationArray)
            {
                PdfObject directObject = PdfReader.getPdfObject(object);
                if (directObject instanceof PdfDictionary)
                {
                    PdfDictionary annotationDictionary = (PdfDictionary) directObject;
                    PdfNumber flagsNumber = annotationDictionary.getAsNumber(PdfName.F);
                    int flags = flagsNumber != null ? flagsNumber.intValue() : 0;
                    flags |= PdfAnnotation.FLAGS_READONLY;
                    annotationDictionary.put(PdfName.F, new PdfNumber(flags));
                }
            }
        }

        stamper.close();
    }
}
 

import com.itextpdf.text.pdf.PdfDictionary; //导入方法依赖的package包/类
/**
 * <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();
    }
}
 

import com.itextpdf.text.pdf.PdfDictionary; //导入方法依赖的package包/类
boolean verify(PdfReader reader, PdfDictionary value) throws GeneralSecurityException
{
    PdfArray byteRange = value.getAsArray(PdfName.BYTERANGE);
    if (byteRange == null || byteRange.isEmpty())
    {
        System.out.printf("  Signed range: missing\n");
    }
    else
    {
        StringBuilder builder = new StringBuilder();
        builder.append("  Signed range:");
        for (PdfObject arrObj: byteRange)
        {
            builder.append(' ').append(arrObj);
        }
        int byteRangeSize = byteRange.size();
        if (byteRangeSize % 2 == 1)
        {
            builder.append(" (Invalid: odd number of entries)");
        }
        else
        {
            StringBuilder interoperability = new StringBuilder();
            if (byteRangeSize != 4)
            {
                interoperability.append(", not exactly one gap");
            }
            int rangeStart = byteRange.getAsNumber(0).intValue();
            if (rangeStart != 0)
            {
                interoperability.append(", first range does not start at 0");
            }
            for (int i = 2; i < byteRangeSize; i+=2)
            {
                int lastRangeEnd = rangeStart + byteRange.getAsNumber(i-1).intValue();
                rangeStart = byteRange.getAsNumber(i).intValue();
                if (lastRangeEnd > rangeStart)
                {
                    interoperability.append(", unordered or overlapping ranges");
                    break;
                }
            }
            if (interoperability.length() > 0)
            {
                builder.append(" (Interoperability issues").append(interoperability).append(')');
            }
            int finalRangeEnd = byteRange.getAsNumber(byteRangeSize-2).intValue() + byteRange.getAsNumber(byteRangeSize-1).intValue();
            if (finalRangeEnd == reader.getFileLength())
            {
                builder.append(" (covers whole file)");
            }
            else
            {
                builder.append(" (covers partial file up to ").append(finalRangeEnd).append(")");
            }
        }
        System.out.println(builder);
    }

    PdfPKCS7 pkcs7 = verifySignature(reader, value, null);
    System.out.printf("  Validity: %s\n", pkcs7.verify());
    return pkcs7 != null;
}