Example usage for com.itextpdf.text.pdf PdfWriter freeReader

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf PdfWriter freeReader.

Prototype

public void freeReader(final PdfReader reader) throws IOException 

Source Link

Document

Use this method to writes the reader to the document and free the memory used by it.

Usage

From source file:com.github.albfernandez.joinpdf.JoinPdf.java

License:Open Source License

private void addPdf(final File file, final Document document, final PdfWriter writer) throws Exception {
    PdfReader pdfReader = null;/*from  www  . jav  a 2 s.c  o  m*/
    try (InputStream is = new FileInputStream(file)) {
        pdfReader = new PdfReader(is);
        PdfContentByte cb = writer.getDirectContent();
        for (int currentPage = 1; currentPage <= pdfReader.getNumberOfPages(); currentPage++) {
            Rectangle currentPageSize = pdfReader.getPageSize(currentPage);
            document.setPageSize(currentPageSize);
            document.newPage();
            PdfImportedPage page = writer.getImportedPage(pdfReader, currentPage);
            cb.addTemplate(page, 0, 0);
            writePageNumber(cb);

        }
        writer.flush();
    } finally {
        if (pdfReader != null) {
            writer.freeReader(pdfReader);
            ItextUtils.close(pdfReader);
        }
    }
}

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From source file:com.vectorprint.report.itext.DefaultElementProducer.java

License:Open Source License

@Override
public void loadPdf(File pdf, PdfWriter writer, byte[] password, ImageProcessor imageProcessor, int... pages)
        throws VectorPrintException {
    RandomAccessFileOrArray ra = null;//w w  w . j  a v a  2 s . co m
    try {
        RandomAccessSourceFactory rasf = new RandomAccessSourceFactory();
        ra = new RandomAccessFileOrArray(rasf.createBestSource(pdf.getPath()));
        PdfReader reader = new PdfReader(ra, password);
        if (pages == null) {
            for (int i = 0; i < reader.getNumberOfPages();) {
                imageProcessor.processImage(Image.getInstance(writer.getImportedPage(reader, ++i)));
                writer.freeReader(reader);
            }
        } else {
            for (int i : pages) {
                imageProcessor.processImage(Image.getInstance(writer.getImportedPage(reader, i)));
                writer.freeReader(reader);
            }
        }
    } catch (BadElementException | IOException ex) {
        throw new VectorPrintException(String.format("unable to load image %s", pdf.toString()), ex);
    } finally {
        if (ra != null) {
            try {
                ra.close();
            } catch (IOException ex) {
            }
        }
    }
}

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From source file:com.vectorprint.report.itext.DefaultElementProducer.java

License:Open Source License

@Override
public void loadPdf(InputStream pdf, PdfWriter writer, Certificate certificate, Key key,
        String securityProvider, ImageProcessor imageProcessor, int... pages) throws VectorPrintException {
    // first download, then load
    File f = null;//w  w  w.j  av a 2s .c  o  m
    try {
        f = File.createTempFile("pdf.", "pdf");
        f.deleteOnExit();
        IOHelper.load(pdf, new FileOutputStream(f), ReportConstants.DEFAULTBUFFERSIZE, true);
        PdfReader reader = new PdfReader(f.getPath(), certificate, key, securityProvider);
        if (pages == null) {
            for (int i = 0; i < reader.getNumberOfPages();) {
                imageProcessor.processImage(Image.getInstance(writer.getImportedPage(reader, ++i)));
                writer.freeReader(reader);
            }
        } else {
            for (int i : pages) {
                imageProcessor.processImage(Image.getInstance(writer.getImportedPage(reader, i)));
                writer.freeReader(reader);
            }
        }
    } catch (BadElementException | IOException ex) {
        throw new VectorPrintException(String.format("unable to load image %s", pdf.toString()), ex);
    } finally {
        if (f != null) {
            f.delete();
        }
    }
}

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From source file:com.vectorprint.report.itext.TocOutputStream.java

License:Open Source License

@Override
public void secondPass(InputStream firstPass, OutputStream orig) throws IOException {
    PdfReader reader = null;//from  w w w.  j a v a 2  s.c  om
    VectorPrintDocument vpd = (VectorPrintDocument) outer.getDocument();
    try {
        reader = new PdfReader(firstPass);
        prepareToc();
        // init fresh components for second pass styling
        StylerFactory _stylerFactory = outer.getStylerFactory().getClass().newInstance();
        StylerFactoryHelper.SETTINGS_ANNOTATION_PROCESSOR.initSettings(_stylerFactory, outer.getSettings());
        _stylerFactory.setLayerManager(outer.getElementProducer());
        _stylerFactory.setImageLoader(outer.getElementProducer());
        outer.getStyleHelper().setStylerFactory(_stylerFactory);
        EventHelper event = outer.getEventHelper().getClass().newInstance();
        event.setItextStylerFactory(_stylerFactory);
        event.setElementProvider(outer.getElementProducer());
        ((DefaultElementProducer) outer.getElementProducer()).setPh(event);
        Document d = new VectorPrintDocument(event, _stylerFactory, outer.getStyleHelper());
        PdfWriter w = PdfWriter.getInstance(d, orig);
        w.setPageEvent(event);
        outer.getStyleHelper().setVpd((VectorPrintDocument) d);
        _stylerFactory.setDocument(d, w);
        DocumentStyler ds = _stylerFactory.getDocumentStyler();
        outer.getStyleHelper().style(d, null, StyleHelper.toCollection(ds));
        d.open();
        ds.styleAfterOpen(d, null);
        List outline = SimpleBookmark.getBookmark(reader);
        if (!ds.getValue(DocumentSettings.TOCAPPEND, Boolean.class)) {
            printToc(d, w, vpd);
            if (outline != null) {
                int cur = w.getCurrentPageNumber();
                SimpleBookmark.shiftPageNumbers(outline, cur, null);
            }
            d.newPage();
        }
        outer.getSettings().put(ReportConstants.DEBUG, Boolean.FALSE.toString());
        for (int p = 1; p <= reader.getNumberOfPages(); p++) {
            Image page = Image.getInstance(w.getImportedPage(reader, p));
            page.setAbsolutePosition(0, 0);
            d.setPageSize(page);
            d.newPage();
            Chunk i = new Chunk(" ");
            if (vpd.getToc().containsKey(p)) {
                Section s = null;
                for (Map.Entry<Integer, List<Section>> e : vpd.getToc().entrySet()) {
                    if (e.getKey() == p) {
                        s = e.getValue().get(0);
                        break;
                    }
                }
                i.setLocalDestination(s.getTitle().getContent());
            }
            d.add(i);
            w.getDirectContent().addImage(page);
            w.freeReader(reader);
        }
        if (_stylerFactory.getDocumentStyler().getValue(DocumentSettings.TOCAPPEND, Boolean.class)) {
            printToc(d, w, vpd);
        }
        w.setOutlines(outline);
        if (outer.isWasDebug()) {
            event.setLastPage(outer.getWriter().getCurrentPageNumber());
            d.setPageSize(new Rectangle(ItextHelper.mmToPts(297), ItextHelper.mmToPts(210)));
            d.setMargins(5, 5, 5, 5);
            d.newPage();
            outer.getSettings().put(ReportConstants.DEBUG, Boolean.TRUE.toString());
            event.setDebugHereAfter(true);
            DebugHelper.appendDebugInfo(w, d, outer.getSettings(), _stylerFactory);
        }
        d.close();
    } catch (VectorPrintException | DocumentException | InstantiationException | IllegalAccessException ex) {
        throw new VectorPrintRuntimeException(ex);
    } finally {
        if (reader != null) {
            reader.close();
        }
    }
}

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