Example usage for com.itextpdf.text.pdf PdfReader is128Key

Introduction

In this page you can find the example usage for com.itextpdf.text.pdf PdfReader is128Key.

Prototype

public boolean is128Key() 

Source Link

Document

Returns true if the PDF has a 128 bit key encryption.

Usage

From source file:uk.bl.wa.tika.parser.pdf.itext.PDFParser.java

License:Apache License

private static void extractMetadata(PdfReader reader, Metadata metadata) {
    try {//w w  w .j a  v a  2  s . c o  m
        HashMap<String, String> map = reader.getInfo();
        // Clone the PDF info:
        for (String key : map.keySet()) {
            metadata.set(key.toLowerCase(), map.get(key));
        }
        // Add other data of interest:
        metadata.set("pdf:version", "1." + reader.getPdfVersion());
        metadata.set("pdf:numPages", "" + reader.getNumberOfPages());
        metadata.set("pdf:cryptoMode", "" + getCryptoModeAsString(reader));
        metadata.set("pdf:openedWithFullPermissions", "" + reader.isOpenedWithFullPermissions());
        metadata.set("pdf:encrypted", "" + reader.isEncrypted());
        metadata.set("pdf:metadataEncrypted", "" + reader.isMetadataEncrypted());
        metadata.set("pdf:128key", "" + reader.is128Key());
        metadata.set("pdf:tampered", "" + reader.isTampered());
        // Also grap XMP metadata, if present:
        byte[] xmpmd = reader.getMetadata();
        if (xmpmd != null) {
            // This is standard Tika code for parsing standard stuff from the XMP:
            JempboxExtractor extractor = new JempboxExtractor(metadata);
            extractor.parse(new ByteArrayInputStream(xmpmd));
            // This is custom XMP-handling code:
            XMPMetadata xmp = XMPMetadata.load(new ByteArrayInputStream(xmpmd));
            // There is a special class for grabbing data in the PDF schema - not sure it will add much here:
            // Could parse xmp:CreatorTool and pdf:Producer etc. etc. out of here.
            //XMPSchemaPDF pdfxmp = xmp.getPDFSchema();
            // Added a PDF/A schema class:
            xmp.addXMLNSMapping(XMPSchemaPDFA.NAMESPACE, XMPSchemaPDFA.class);
            XMPSchemaPDFA pdfaxmp = (XMPSchemaPDFA) xmp.getSchemaByClass(XMPSchemaPDFA.class);
            if (pdfaxmp != null) {
                metadata.set("pdfaid:part", pdfaxmp.getPart());
                metadata.set("pdfaid:conformance", pdfaxmp.getConformance());
                String version = "A-" + pdfaxmp.getPart() + pdfaxmp.getConformance().toLowerCase();
                //metadata.set("pdfa:version", version );                    
                metadata.set("pdf:version", version);
            }
        }
        // Attempt to determine Adobe extension level:
        PdfDictionary extensions = reader.getCatalog().getAsDict(PdfName.EXTENSIONS);
        if (extensions != null) {
            PdfDictionary adobeExt = extensions.getAsDict(PdfName.ADBE);
            if (adobeExt != null) {
                PdfName baseVersion = adobeExt.getAsName(PdfName.BASEVERSION);
                int el = adobeExt.getAsNumber(PdfName.EXTENSIONLEVEL).intValue();
                metadata.set("pdf:version",
                        baseVersion.toString().substring(1) + " Adobe Extension Level " + el);
            }
        }
        // Ensure the normalised metadata are mapped in:
        if (map.get("Title") != null)
            metadata.set(Metadata.TITLE, map.get("Title"));
        if (map.get("Author") != null)
            metadata.set(Metadata.AUTHOR, map.get("Author"));
    } catch (Exception e) {
        System.err.println("PDFParser.extractMetadata() caught Exception: " + e.getMessage());
        e.printStackTrace();
    }
}

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