Examples of com.lowagie.text.exceptions.InvalidPdfException

com.lowagie.text.exceptions.InvalidPdfException
Typed exception used when opening an existing PDF document. Gets thrown when the document isn't a valid PDF document. @since 2.1.5

        if (ch != -1)
            file.pushBack((byte)ch);
    }
    
    public void throwError(String error) throws IOException {
        throw new InvalidPdfException(MessageLocalization.getComposedMessage("1.at.file.pointer.2", error, String.valueOf(file.getFilePointer())));
    }

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    public char checkPdfHeader() throws IOException {
        file.setStartOffset(0);
        String str = readString(1024);
        int idx = str.indexOf("%PDF-");
        if (idx < 0)
            throw new InvalidPdfException(MessageLocalization.getComposedMessage("pdf.header.not.found"));
        file.setStartOffset(idx);
        return str.charAt(idx + 7);
    }

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    public void checkFdfHeader() throws IOException {
        file.setStartOffset(0);
        String str = readString(1024);
        int idx = str.indexOf("%FDF-1.2");
        if (idx < 0)
            throw new InvalidPdfException(MessageLocalization.getComposedMessage("fdf.header.not.found"));
        file.setStartOffset(idx);
    }

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        int pos = file.length() - size;
        file.seek(pos);
        String str = readString(1024);
        int idx = str.lastIndexOf("startxref");
        if (idx < 0)
            throw new InvalidPdfException(MessageLocalization.getComposedMessage("pdf.startxref.not.found"));
        return pos + idx;
    }

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                    rebuilt = true;
                    rebuildXref();
                    lastXref = -1;
                }
                catch (Exception ne) {
                    throw new InvalidPdfException(MessageLocalization.getComposedMessage("rebuild.failed.1.original.message.2", ne.getMessage(), e.getMessage()));
                }
            }
            try {
                readDocObj();
            }
            catch (Exception e) {
              if (e instanceof BadPasswordException)
                throw new BadPasswordException(e.getMessage());
                if (rebuilt || encryptionError)
                    throw new InvalidPdfException(e.getMessage());
                rebuilt = true;
                encrypted = false;
                rebuildXref();
                lastXref = -1;
                readDocObj();

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                    rebuilt = true;
                    rebuildXref();
                    lastXref = -1;
                }
                catch (Exception ne) {
                    throw new InvalidPdfException(MessageLocalization.getComposedMessage("rebuild.failed.1.original.message.2", ne.getMessage(), e.getMessage()));
                }
            }
            readDocObjPartial();
            readPages();
        }

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            strings.remove(enc.get(PdfName.O));
            oValue = com.lowagie.text.DocWriter.getISOBytes(s);


            o = enc.get(PdfName.P);
            if (!o.isNumber())
              throw new InvalidPdfException(MessageLocalization.getComposedMessage("illegal.p.value"));
            pValue = ((PdfNumber)o).intValue();


            o = enc.get(PdfName.R);
            if (!o.isNumber())
              throw new InvalidPdfException(MessageLocalization.getComposedMessage("illegal.r.value"));
            rValue = ((PdfNumber)o).intValue();


            switch (rValue) {
            case 2:
              cryptoMode = PdfWriter.STANDARD_ENCRYPTION_40;
              break;
            case 3:
                o = enc.get(PdfName.LENGTH);
                if (!o.isNumber())
                    throw new InvalidPdfException(MessageLocalization.getComposedMessage("illegal.length.value"));
                lengthValue = ( (PdfNumber) o).intValue();
                if (lengthValue > 128 || lengthValue < 40 || lengthValue % 8 != 0)
                    throw new InvalidPdfException(MessageLocalization.getComposedMessage("illegal.length.value"));
                cryptoMode = PdfWriter.STANDARD_ENCRYPTION_128;
                break;
            case 4:
                PdfDictionary dic = (PdfDictionary)enc.get(PdfName.CF);
                if (dic == null)
                    throw new InvalidPdfException(MessageLocalization.getComposedMessage("cf.not.found.encryption"));
                dic = (PdfDictionary)dic.get(PdfName.STDCF);
                if (dic == null)
                    throw new InvalidPdfException(MessageLocalization.getComposedMessage("stdcf.not.found.encryption"));
                if (PdfName.V2.equals(dic.get(PdfName.CFM)))
                    cryptoMode = PdfWriter.STANDARD_ENCRYPTION_128;
                else if (PdfName.AESV2.equals(dic.get(PdfName.CFM)))
                    cryptoMode = PdfWriter.ENCRYPTION_AES_128;
                else
                    throw new UnsupportedPdfException(MessageLocalization.getComposedMessage("no.compatible.encryption.found"));
                PdfObject em = enc.get(PdfName.ENCRYPTMETADATA);
                if (em != null && em.toString().equals("false"))
                    cryptoMode |= PdfWriter.DO_NOT_ENCRYPT_METADATA;
                break;
            default:
              throw new UnsupportedPdfException(MessageLocalization.getComposedMessage("unknown.encryption.type.r.eq.1", rValue));
            }
        }
        else if (filter.equals(PdfName.PUBSEC)) {
            boolean foundRecipient = false;
            byte[] envelopedData = null;
            PdfArray recipients = null;


            o = enc.get(PdfName.V);
            if (!o.isNumber())
              throw new InvalidPdfException(MessageLocalization.getComposedMessage("illegal.v.value"));
            int vValue = ((PdfNumber)o).intValue();
            switch(vValue) {
            case 1:
                cryptoMode = PdfWriter.STANDARD_ENCRYPTION_40;
                lengthValue = 40;
                recipients = (PdfArray)enc.get(PdfName.RECIPIENTS);
              break;
            case 2:
                o = enc.get(PdfName.LENGTH);
                if (!o.isNumber())
                    throw new InvalidPdfException(MessageLocalization.getComposedMessage("illegal.length.value"));
                lengthValue = ( (PdfNumber) o).intValue();
                if (lengthValue > 128 || lengthValue < 40 || lengthValue % 8 != 0)
                    throw new InvalidPdfException(MessageLocalization.getComposedMessage("illegal.length.value"));
                cryptoMode = PdfWriter.STANDARD_ENCRYPTION_128;
                recipients = (PdfArray)enc.get(PdfName.RECIPIENTS);
                break;
            case 4:
                PdfDictionary dic = (PdfDictionary)enc.get(PdfName.CF);
                if (dic == null)
                    throw new InvalidPdfException(MessageLocalization.getComposedMessage("cf.not.found.encryption"));
                dic = (PdfDictionary)dic.get(PdfName.DEFAULTCRYPTFILTER);
                if (dic == null)
                    throw new InvalidPdfException(MessageLocalization.getComposedMessage("defaultcryptfilter.not.found.encryption"));
                if (PdfName.V2.equals(dic.get(PdfName.CFM))) {
                    cryptoMode = PdfWriter.STANDARD_ENCRYPTION_128;
                    lengthValue = 128;
                }
                else if (PdfName.AESV2.equals(dic.get(PdfName.CFM))) {

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                    break;
                }
                address = tokens.intValue() + first;
            }
            if (!ok)
                throw new InvalidPdfException(MessageLocalization.getComposedMessage("error.reading.objstm"));
            tokens.seek(address);
            return readPRObject();
        }
        finally {
            tokens = saveTokens;

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                    break;
                }
                address[k] = tokens.intValue() + first;
            }
            if (!ok)
                throw new InvalidPdfException(MessageLocalization.getComposedMessage("error.reading.objstm"));
            for (int k = 0; k < n; ++k) {
                if (map.containsKey(k)) {
                    tokens.seek(address[k]);
                    PdfObject obj = readPRObject();
                    xrefObj.set(objNumber[k], obj);

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        hybridXref = false;
        newXrefType = false;
        tokens.seek(tokens.getStartxref());
        tokens.nextToken();
        if (!tokens.getStringValue().equals("startxref"))
            throw new InvalidPdfException(MessageLocalization.getComposedMessage("startxref.not.found"));
        tokens.nextToken();
        if (tokens.getTokenType() != PRTokeniser.TK_NUMBER)
            throw new InvalidPdfException(MessageLocalization.getComposedMessage("startxref.is.not.followed.by.a.number"));
        int startxref = tokens.intValue();
        lastXref = startxref;
        eofPos = tokens.getFilePointer();
        try {
            if (readXRefStream(startxref)) {

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Related Classes of com.lowagie.text.exceptions.InvalidPdfException

com.lowagie.text.pdf.PdfReader

com.lowagie.text.pdf.PRTokeniser

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