Example usage for org.apache.pdfbox.multipdf PDFMergerUtility setDestinationDocumentInformation

Introduction

In this page you can find the example usage for org.apache.pdfbox.multipdf PDFMergerUtility setDestinationDocumentInformation.

Prototype

public void setDestinationDocumentInformation(PDDocumentInformation info) 

Source Link

Document

Set the destination document information that is to be set in #mergeDocuments(org.apache.pdfbox.io.MemoryUsageSetting) .

Usage

From source file:io.github.qwefgh90.akka.pdf.PDFUtilWrapper.java

License:Apache License

public static InputStream merge(final List<InputStream> sources, String _title, String _creator,
        String _subject) throws IOException {
    String title = _title == null ? "" : _title;
    String creator = _creator == null ? "" : _creator;
    String subject = _subject == null ? "" : _subject;

    ByteArrayOutputStream mergedPDFOutputStream = null;
    COSStream cosStream = null;/*w w w.ja  v  a  2  s. c om*/
    try {
        // If you're merging in a servlet, you can modify this example to use the outputStream only
        // as the response as shown here: http://stackoverflow.com/a/36894346/535646
        mergedPDFOutputStream = new ByteArrayOutputStream();
        cosStream = new COSStream();

        PDFMergerUtility pdfMerger = createPDFMergerUtility(sources, mergedPDFOutputStream);

        // PDF and XMP properties must be identical, otherwise document is not PDF/A compliant
        PDDocumentInformation pdfDocumentInfo = createPDFDocumentInfo(title, creator, subject);
        PDMetadata xmpMetadata = createXMPMetadata(cosStream, title, creator, subject);
        pdfMerger.setDestinationDocumentInformation(pdfDocumentInfo);
        pdfMerger.setDestinationMetadata(xmpMetadata);

        LOG.info("Merging " + sources.size() + " source documents into one PDF");
        pdfMerger.mergeDocuments(MemoryUsageSetting.setupMainMemoryOnly());
        LOG.info("PDF merge successful, size = {" + mergedPDFOutputStream.size() + "} bytes");

        return new ByteArrayInputStream(mergedPDFOutputStream.toByteArray());
    } catch (BadFieldValueException e) {
        throw new IOException("PDF merge problem", e);
    } catch (TransformerException e) {
        throw new IOException("PDF merge problem", e);
    } finally {
        for (InputStream source : sources) {
            IOUtils.closeQuietly(source);
        }
        IOUtils.closeQuietly(cosStream);
        IOUtils.closeQuietly(mergedPDFOutputStream);
    }
}

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