Example usage for org.apache.pdfbox.pdmodel PDDocumentCatalog setPageMode

Introduction

In this page you can find the example usage for org.apache.pdfbox.pdmodel PDDocumentCatalog setPageMode.

Prototype

public void setPageMode(PageMode mode) 

Source Link

Document

Sets the page mode.

Usage

From source file:com.fangxin365.core.utils.PDFMerger.java

License:Apache License

/**
 * append all pages from source to destination.
 * //from  ww w  .  j a v  a 2  s  .  c o  m
 * @param destination
 *            the document to receive the pages
 * @param source
 *            the document originating the new pages
 * 
 * @throws IOException
 *             If there is an error accessing data from either document.
 */
public void appendDocument(PDDocument destination, PDDocument source) throws IOException {
    if (destination.isEncrypted()) {
        System.out.println("Error: destination PDF is encrypted, can't append encrypted PDF documents.");
    }
    if (source.isEncrypted()) {
        System.out.println("Error: source PDF is encrypted, can't append encrypted PDF documents.");
    }
    PDDocumentInformation destInfo = destination.getDocumentInformation();
    PDDocumentInformation srcInfo = source.getDocumentInformation();
    destInfo.getDictionary().mergeInto(srcInfo.getDictionary());

    PDDocumentCatalog destCatalog = destination.getDocumentCatalog();
    PDDocumentCatalog srcCatalog = source.getDocumentCatalog();

    // use the highest version number for the resulting pdf
    float destVersion = destination.getDocument().getVersion();
    float srcVersion = source.getDocument().getVersion();

    if (destVersion < srcVersion) {
        destination.getDocument().setVersion(srcVersion);
    }

    if (destCatalog.getOpenAction() == null) {
        destCatalog.setOpenAction(srcCatalog.getOpenAction());
    }

    // maybe there are some shared resources for all pages
    COSDictionary srcPages = (COSDictionary) srcCatalog.getCOSDictionary().getDictionaryObject(COSName.PAGES);
    COSDictionary srcResources = (COSDictionary) srcPages.getDictionaryObject(COSName.RESOURCES);
    COSDictionary destPages = (COSDictionary) destCatalog.getCOSDictionary().getDictionaryObject(COSName.PAGES);
    COSDictionary destResources = (COSDictionary) destPages.getDictionaryObject(COSName.RESOURCES);
    if (srcResources != null) {
        if (destResources != null) {
            destResources.mergeInto(srcResources);
        } else {
            destPages.setItem(COSName.RESOURCES, srcResources);
        }
    }

    PDFCloneUtility cloner = new PDFCloneUtility(destination);

    try {
        PDAcroForm destAcroForm = destCatalog.getAcroForm();
        PDAcroForm srcAcroForm = srcCatalog.getAcroForm();
        if (destAcroForm == null) {
            cloner.cloneForNewDocument(srcAcroForm);
            destCatalog.setAcroForm(srcAcroForm);
        } else {
            if (srcAcroForm != null) {
                mergeAcroForm(cloner, destAcroForm, srcAcroForm);
            }
        }
    } catch (Exception e) {
        // if we are not ignoring exceptions, we'll re-throw this
        if (!ignoreAcroFormErrors) {
            throw (IOException) e;
        }
    }

    COSArray destThreads = (COSArray) destCatalog.getCOSDictionary().getDictionaryObject(COSName.THREADS);
    COSArray srcThreads = (COSArray) cloner
            .cloneForNewDocument(destCatalog.getCOSDictionary().getDictionaryObject(COSName.THREADS));
    if (destThreads == null) {
        destCatalog.getCOSDictionary().setItem(COSName.THREADS, srcThreads);
    } else {
        destThreads.addAll(srcThreads);
    }

    PDDocumentNameDictionary destNames = destCatalog.getNames();
    PDDocumentNameDictionary srcNames = srcCatalog.getNames();
    if (srcNames != null) {
        if (destNames == null) {
            destCatalog.getCOSDictionary().setItem(COSName.NAMES, cloner.cloneForNewDocument(srcNames));
        } else {
            cloner.cloneMerge(srcNames, destNames);
        }

    }

    PDDocumentOutline destOutline = destCatalog.getDocumentOutline();
    PDDocumentOutline srcOutline = srcCatalog.getDocumentOutline();
    if (srcOutline != null) {
        if (destOutline == null) {
            PDDocumentOutline cloned = new PDDocumentOutline(
                    (COSDictionary) cloner.cloneForNewDocument(srcOutline));
            destCatalog.setDocumentOutline(cloned);
        } else {
            PDOutlineItem first = srcOutline.getFirstChild();
            if (first != null) {
                PDOutlineItem clonedFirst = new PDOutlineItem(
                        (COSDictionary) cloner.cloneForNewDocument(first));
                destOutline.appendChild(clonedFirst);
            }
        }
    }

    String destPageMode = destCatalog.getPageMode();
    String srcPageMode = srcCatalog.getPageMode();
    if (destPageMode == null) {
        destCatalog.setPageMode(srcPageMode);
    }

    COSDictionary destLabels = (COSDictionary) destCatalog.getCOSDictionary()
            .getDictionaryObject(COSName.PAGE_LABELS);
    COSDictionary srcLabels = (COSDictionary) srcCatalog.getCOSDictionary()
            .getDictionaryObject(COSName.PAGE_LABELS);
    if (srcLabels != null) {
        int destPageCount = destination.getNumberOfPages();
        COSArray destNums = null;
        if (destLabels == null) {
            destLabels = new COSDictionary();
            destNums = new COSArray();
            destLabels.setItem(COSName.NUMS, destNums);
            destCatalog.getCOSDictionary().setItem(COSName.PAGE_LABELS, destLabels);
        } else {
            destNums = (COSArray) destLabels.getDictionaryObject(COSName.NUMS);
        }
        COSArray srcNums = (COSArray) srcLabels.getDictionaryObject(COSName.NUMS);
        if (srcNums != null) {
            for (int i = 0; i < srcNums.size(); i += 2) {
                COSNumber labelIndex = (COSNumber) srcNums.getObject(i);
                long labelIndexValue = labelIndex.intValue();
                destNums.add(COSInteger.get(labelIndexValue + destPageCount));
                destNums.add(cloner.cloneForNewDocument(srcNums.getObject(i + 1)));
            }
        }
    }

    COSStream destMetadata = (COSStream) destCatalog.getCOSDictionary().getDictionaryObject(COSName.METADATA);
    COSStream srcMetadata = (COSStream) srcCatalog.getCOSDictionary().getDictionaryObject(COSName.METADATA);
    if (destMetadata == null && srcMetadata != null) {
        PDStream newStream = new PDStream(destination, srcMetadata.getUnfilteredStream(), false);
        newStream.getStream().mergeInto(srcMetadata);
        newStream.addCompression();
        destCatalog.getCOSDictionary().setItem(COSName.METADATA, newStream);
    }

    // finally append the pages
    @SuppressWarnings("unchecked")
    List<PDPage> pages = srcCatalog.getAllPages();
    Iterator<PDPage> pageIter = pages.iterator();
    while (pageIter.hasNext()) {
        PDPage page = pageIter.next();
        PDPage newPage = new PDPage((COSDictionary) cloner.cloneForNewDocument(page.getCOSDictionary()));
        newPage.setCropBox(page.findCropBox());
        newPage.setMediaBox(page.findMediaBox());
        newPage.setRotation(page.findRotation());
        destination.addPage(newPage);
    }
}

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From source file:helper.ThumbnailGenerator.java

License:Open Source License

private static BufferedImage writeImageFirstPage(PDDocument document, int imageType, int size)
        throws IOException {
    PDDocumentCatalog dc = document.getDocumentCatalog();
    dc.setPageMode(PDDocumentCatalog.PAGE_MODE_USE_THUMBS);
    dc.setPageLayout(PDDocumentCatalog.PAGE_LAYOUT_SINGLE_PAGE);
    PDPage page = (PDPage) dc.getAllPages().get(0);
    BufferedImage image = page.convertToImage(imageType, size);
    return image;
}

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