Example usage for org.apache.pdfbox.pdmodel PDDocument getSignatureDictionaries

Introduction

In this page you can find the example usage for org.apache.pdfbox.pdmodel PDDocument getSignatureDictionaries.

Prototype

public List<PDSignature> getSignatureDictionaries() 

Source Link

Document

Retrieve all signature dictionaries from the document.

Usage

From source file:se.tillvaxtverket.ttsigvalws.ttwssigvalidation.pdf.PdfSignatureVerifier.java

License:Open Source License

/**
 * Verifies the signature on a PDF document
 *
 * @param pdfFile The PDF file to verify
 * @param verifyPades If this is set to false, signature validation will
 * ignore any errors in any present PAdES Signed signature certificate data.
 * This should normally always be true. If this is set to true, signature
 * validation will still succeed if PAdES data is absent.
 * @return Signature verification result data.
 * @throws IOException/*from ww  w .j a  v a 2 s .  c om*/
 */
public static PdfSigVerifyResult verifyPdfSignatures(File pdfFile, boolean verifyPades) throws IOException {
    PDDocument doc = PDDocument.load(pdfFile);
    PdfSigVerifyResult result = new PdfSigVerifyResult();
    List<PDSignature> signatureDicts = doc.getSignatureDictionaries();
    for (PDSignature sig : signatureDicts) {
        byte[] signedContent = sig.getSignedContent(new FileInputStream(pdfFile));
        byte[] sigBytes = sig.getContents(new FileInputStream(pdfFile));

        CMSSigVerifyResult sigResult = result.addNewIndividualSignatureResult();
        try {
            verifySign(sigBytes, signedContent, sigResult, verifyPades);
        } catch (Exception ex) {
            sigResult.setStatus("Failed with exception: " + ex.getMessage());
        }
    }

    result.consolidateResults();
    return result;
}

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