protected internal override void CheckForm(PdfDictionary form)
{
if (form == null)
{
return;
}
PdfBoolean needAppearances = form.GetAsBoolean(PdfName.NeedAppearances);
if (needAppearances != null && needAppearances.GetValue())
{
throw new PdfAConformanceException(PdfAConformanceException.NeedAppearancesFlagOfTheInteractiveFormDictionaryShallEitherNotBePresentedOrShallBeFalse
);
}
CheckResources(form.GetAsDictionary(PdfName.DR));
PdfArray fields = form.GetAsArray(PdfName.Fields);
if (fields != null)
{
fields = GetFormFields(fields);
foreach (PdfObject field in fields)
{
PdfDictionary fieldDic = (PdfDictionary)field;
if (fieldDic.ContainsKey(PdfName.A) || fieldDic.ContainsKey(PdfName.AA))
{
throw new PdfAConformanceException(PdfAConformanceException.WidgetAnnotationDictionaryOrFieldDictionaryShallNotIncludeAOrAAEntry
);
}
CheckResources(fieldDic.GetAsDictionary(PdfName.DR));
}
}
}
protected internal override void CheckForm(PdfDictionary form)
{
if (form == null)
{
return;
}
PdfBoolean needAppearances = form.GetAsBoolean(PdfName.NeedAppearances);
if (needAppearances != null && needAppearances.GetValue())
{
throw new PdfAConformanceException(PdfAConformanceException.NEEDAPPEARANCES_FLAG_OF_THE_INTERACTIVE_FORM_DICTIONARY_SHALL_EITHER_NOT_BE_PRESENTED_OR_SHALL_BE_FALSE
);
}
CheckResources(form.GetAsDictionary(PdfName.DR));
PdfArray fields = form.GetAsArray(PdfName.Fields);
if (fields != null)
{
fields = GetFormFields(fields);
foreach (PdfObject field in fields)
{
PdfDictionary fieldDic = (PdfDictionary)field;
if (fieldDic.ContainsKey(PdfName.A) || fieldDic.ContainsKey(PdfName.AA))
{
throw new PdfAConformanceException(PdfAConformanceException.WIDGET_ANNOTATION_DICTIONARY_OR_FIELD_DICTIONARY_SHALL_NOT_INCLUDE_A_OR_AA_ENTRY
);
}
CheckResources(fieldDic.GetAsDictionary(PdfName.DR));
}
}
}
/**
* Deletes redact annotations from the page and substitutes them with either OverlayText or RO object if it's needed.
*/
private void DeleteRedactAnnots(int pageNum)
{
HashSet2 <String> indirRefs;
redactAnnotIndirRefs.TryGetValue(pageNum, out indirRefs);
if (indirRefs == null || indirRefs.Count == 0)
{
return;
}
PdfReader reader = pdfStamper.Reader;
PdfContentByte canvas = pdfStamper.GetOverContent(pageNum);
PdfDictionary pageDict = reader.GetPageN(pageNum);
PdfArray annotsArray = pageDict.GetAsArray(PdfName.ANNOTS);
// j is for access annotRect (i can be decreased, so we need to store additional index,
// indicating current position in ANNOTS array in case if we don't remove anything
for (int i = 0, j = 0; i < annotsArray.Size; ++i, ++j)
{
PdfIndirectReference annotIndRef = annotsArray.GetAsIndirectObject(i);
PdfDictionary annotDict = annotsArray.GetAsDict(i);
if (indirRefs.Contains(annotIndRef.ToString()) || indirRefs.Contains(GetParentIndRefStr(annotDict)))
{
PdfStream formXObj = annotDict.GetAsStream(PdfName.RO);
PdfString overlayText = annotDict.GetAsString(PdfName.OVERLAYTEXT);
if (FillCleanedArea && formXObj != null)
{
PdfArray rectArray = annotDict.GetAsArray(PdfName.RECT);
Rectangle annotRect = new Rectangle(rectArray.GetAsNumber(0).FloatValue,
rectArray.GetAsNumber(1).FloatValue,
rectArray.GetAsNumber(2).FloatValue,
rectArray.GetAsNumber(3).FloatValue);
InsertFormXObj(canvas, pageDict, formXObj, clippingRects[j], annotRect);
}
else if (FillCleanedArea && overlayText != null && overlayText.ToUnicodeString().Length > 0)
{
DrawOverlayText(canvas, clippingRects[j], overlayText,
annotDict.GetAsString(PdfName.DA),
annotDict.GetAsNumber(PdfName.Q),
annotDict.GetAsBoolean(PdfName.REPEAT));
}
annotsArray.Remove(i--); // array size is changed, so we need to decrease i
}
}
if (annotsArray.Size == 0)
{
pageDict.Remove(PdfName.ANNOTS);
}
}
protected override void CheckPdfObject(PdfWriter writer, int key, Object obj1)
{
if (obj1 is PdfNumber)
{
PdfNumber number = (PdfNumber)obj1;
if (Math.Abs(number.DoubleValue) > maxRealValue && number.ToString().Contains("."))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("real.number.is.out.of.range"));
}
}
else if (obj1 is PdfString)
{
PdfString str = (PdfString)obj1;
if (str.GetBytes().Length > maxStringLength)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("pdf.string.is.too.long"));
}
}
else if (obj1 is PdfArray)
{
PdfArray array = (PdfArray)obj1;
if (array.Size > maxArrayLength)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("pdf.array.is.out.of.bounds"));
}
}
else if (obj1 is PdfDictionary)
{
PdfDictionary dictionary = (PdfDictionary)obj1;
if (dictionary.Size > maxDictionaryLength)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("pdf.dictionary.is.out.of.bounds"));
}
if (PdfName.CATALOG.Equals(dictionary.GetAsName(PdfName.TYPE)))
{
if (dictionary.Contains(PdfName.AA))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("the.document.catalog.dictionary.shall.not.include.an.aa.entry"));
}
if (CheckStructure(conformanceLevel))
{
PdfDictionary markInfo = dictionary.GetAsDict(PdfName.MARKINFO);
if (markInfo == null || markInfo.GetAsBoolean(PdfName.MARKED) == null || markInfo.GetAsBoolean(PdfName.MARKED).BooleanValue == false)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("document.catalog.dictionary.shall.include.a.markinfo.dictionary.whose.entry.marked.shall.have.a.value.of.true"));
}
if (!dictionary.Contains(PdfName.LANG))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("document.catalog.dictionary.should.contain.lang.entry"));
}
}
}
}
}
protected internal override void CheckLogicalStructure(PdfDictionary catalog)
{
if (CheckStructure(conformanceLevel))
{
PdfDictionary markInfo = catalog.GetAsDictionary(PdfName.MarkInfo);
if (markInfo == null || markInfo.GetAsBoolean(PdfName.Marked) == null || !markInfo.GetAsBoolean(PdfName.Marked
).GetValue())
{
throw new PdfAConformanceException(PdfAConformanceException.CatalogShallIncludeMarkInfoDictionaryWithMarkedTrueValue
);
}
if (!catalog.ContainsKey(PdfName.Lang))
{
ILogger logger = LoggerFactory.GetLogger(typeof(PdfAChecker));
logger.Warn(PdfAConformanceException.CatalogShallContainLangEntry);
}
}
}
protected internal override void CheckLogicalStructure(PdfDictionary catalog)
{
if (CheckStructure(conformanceLevel))
{
PdfDictionary markInfo = catalog.GetAsDictionary(PdfName.MarkInfo);
if (markInfo == null || markInfo.GetAsBoolean(PdfName.Marked) == null || !markInfo.GetAsBoolean(PdfName.Marked
).GetValue())
{
throw new PdfAConformanceException(PdfAConformanceException.A_CATALOG_SHALL_INCLUDE_MARK_INFO_DICTIONARY_WITH_MARKED_TRUE_VALUE
);
}
if (!catalog.ContainsKey(PdfName.Lang))
{
ILog logger = LogManager.GetLogger(typeof(PdfAChecker));
logger.Warn(PdfAConformanceLogMessageConstant.CATALOG_SHOULD_CONTAIN_LANG_ENTRY);
}
}
}
protected override void CheckPdfObject(PdfWriter writer, int key, Object obj1)
{
if (obj1 is PdfNumber)
{
PdfNumber number = (PdfNumber)obj1;
if (Math.Abs(number.DoubleValue) > maxRealValue && number.ToString().Contains("."))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("real.number.is.out.of.range"));
}
}
else if (obj1 is PdfString)
{
PdfString str = (PdfString)obj1;
if (str.GetBytes().Length > maxStringLength)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("pdf.string.is.too.long"));
}
}
else if (obj1 is PdfArray)
{
PdfArray array = (PdfArray)obj1;
if (array.Size > maxArrayLength)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("pdf.array.is.out.of.bounds"));
}
}
else if (obj1 is PdfDictionary)
{
PdfDictionary dictionary = (PdfDictionary)obj1;
if (dictionary.Size > maxDictionaryLength)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("pdf.dictionary.is.out.of.bounds"));
}
PdfName type = dictionary.GetAsName(PdfName.TYPE);
if (PdfName.CATALOG.Equals(type))
{
if (!dictionary.Contains(PdfName.METADATA))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("the.document.catalog.dictionary.shall.contain.metadata"));
}
if (dictionary.Contains(PdfName.AA))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("the.document.catalog.dictionary.shall.not.include.an.aa.entry"));
}
if (dictionary.Contains(PdfName.NAMES))
{
PdfDictionary names = GetDirectDictionary(dictionary.Get(PdfName.NAMES));
if (names != null && names.Contains(PdfName.EMBEDDEDFILES))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("the.document.catalog.dictionary.shall.not.include.embeddedfiles.names.entry"));
}
}
if (CheckStructure(conformanceLevel))
{
PdfDictionary markInfo = GetDirectDictionary(dictionary.Get(PdfName.MARKINFO));
if (markInfo == null || markInfo.GetAsBoolean(PdfName.MARKED) == null || markInfo.GetAsBoolean(PdfName.MARKED).BooleanValue == false)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("document.catalog.dictionary.shall.include.a.markinfo.dictionary.whose.entry.marked.shall.have.a.value.of.true"));
}
if (!dictionary.Contains(PdfName.LANG))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("document.catalog.dictionary.should.contain.lang.entry"));
}
}
}
else if (PdfName.PAGE.Equals(type))
{
if (dictionary.Contains(PdfName.AA))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("page.dictionary.shall.not.include.aa.entry"));
}
}
else if (PdfName.OUTPUTINTENT.Equals(type))
{
PdfObject destOutputIntent = dictionary.Get(PdfName.DESTOUTPUTPROFILE);
if (destOutputIntent != null && pdfaDestOutputIntent != null)
{
if (pdfaDestOutputIntent.IndRef != destOutputIntent.IndRef)
{
throw new PdfAConformanceException(obj1,
MessageLocalization.GetComposedMessage(
"if.outputintents.array.more.than.one.entry.the.same.indirect.object"));
}
}
else
{
pdfaDestOutputIntent = destOutputIntent;
}
PdfName gts = dictionary.GetAsName(PdfName.S);
if (pdfaDestOutputIntent != null)
{
if (PdfName.GTS_PDFA1.Equals(gts))
{
if (pdfaOutputIntentColorSpace != null)
{
throw new PdfAConformanceException(obj1,
MessageLocalization.GetComposedMessage("a.pdfa.file.may.have.only.one.pdfa.outputintent"));
}
pdfaOutputIntentColorSpace = "";
ICC_Profile icc_profile = writer.ColorProfile;
pdfaOutputIntentColorSpace = Encoding.GetEncoding("US-ASCII").GetString(icc_profile.Data, 16, 4);
}
}
else
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("outputintent.shall.have.gtspdfa1.and.destoutputintent"));
}
}
}
}
protected override void CheckPdfObject(PdfWriter writer, int key, Object obj1)
{
if (obj1 is PdfNumber)
{
PdfNumber number = (PdfNumber)obj1;
if (Math.Abs(number.DoubleValue) > maxRealValue && number.ToString().Contains("."))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("real.number.is.out.of.range"));
}
}
else if (obj1 is PdfString)
{
PdfString str = (PdfString)obj1;
if (str.GetBytes().Length > maxStringLength)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("pdf.string.is.too.long"));
}
}
else if (obj1 is PdfArray)
{
PdfArray array = (PdfArray)obj1;
if (array.Size > maxArrayLength)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("pdf.array.is.out.of.bounds"));
}
}
else if (obj1 is PdfDictionary)
{
PdfDictionary dictionary = (PdfDictionary)obj1;
if (dictionary.Size > maxDictionaryLength)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("pdf.dictionary.is.out.of.bounds"));
}
PdfName type = dictionary.GetAsName(PdfName.TYPE);
if (PdfName.CATALOG.Equals(type))
{
if (!dictionary.Contains(PdfName.METADATA))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("the.document.catalog.dictionary.shall.contain.metadata"));
}
if (dictionary.Contains(PdfName.AA))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("the.document.catalog.dictionary.shall.not.include.an.aa.entry"));
}
if (dictionary.Contains(PdfName.NAMES))
{
PdfDictionary names = GetDirectDictionary(dictionary.Get(PdfName.NAMES));
if (names != null && names.Contains(PdfName.EMBEDDEDFILES))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("the.document.catalog.dictionary.shall.not.include.embeddedfiles.names.entry"));
}
}
if (CheckStructure(conformanceLevel))
{
PdfDictionary markInfo = GetDirectDictionary(dictionary.Get(PdfName.MARKINFO));
if (markInfo == null || markInfo.GetAsBoolean(PdfName.MARKED) == null || markInfo.GetAsBoolean(PdfName.MARKED).BooleanValue == false)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("document.catalog.dictionary.shall.include.a.markinfo.dictionary.whose.entry.marked.shall.have.a.value.of.true"));
}
if (!dictionary.Contains(PdfName.LANG))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("document.catalog.dictionary.should.contain.lang.entry"));
}
}
PdfArray outputIntents = GetDirectArray(dictionary.Get(PdfName.OUTPUTINTENTS));
bool pdfa1OutputIntentFound = false;
if (outputIntents != null && outputIntents.Size > 0)
{
for (int i = 0; i < outputIntents.Size; i++)
{
PdfDictionary outputIntentDictionary = GetDirectDictionary(outputIntents[i]);
PdfName gts = outputIntentDictionary.GetAsName(PdfName.S);
if (PdfName.GTS_PDFA1.Equals(gts))
{
if (pdfa1OutputIntentFound)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("a.pdfa.file.may.have.only.one.pdfa.outputintent"));
}
pdfa1OutputIntentFound = true;
}
if (outputIntentDictionary != null)
{
PdfObject destOutputIntent = outputIntentDictionary.Get(PdfName.DESTOUTPUTPROFILE);
if (destOutputIntent == null && PdfName.GTS_PDFA1.Equals(gts))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("outputintent.shall.have.gtspdfa1.and.destoutputintent"));
}
}
}
}
if ((rgbUsed || cmykUsed || grayUsed) && !pdfa1OutputIntentFound)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("if.device.rgb.cmyk.gray.used.in.file.that.file.shall.contain.pdfa.outputintent"));
}
}
else if (PdfName.PAGE.Equals(type))
{
if (dictionary.Contains(PdfName.AA))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("page.dictionary.shall.not.include.aa.entry"));
}
}
else if (PdfName.OUTPUTINTENT.Equals(type))
{
PdfObject iccProfileStream = dictionary.Get(PdfName.DESTOUTPUTPROFILE);
String inputColorSpace = "";
if (iccProfileStream != null)
{
ICC_Profile icc_profile = writer.ColorProfile;
inputColorSpace = Encoding.GetEncoding("US-ASCII").GetString(icc_profile.Data, 16, 4);
}
PdfName gts = dictionary.GetAsName(PdfName.S);
if (!PdfName.GTS_PDFA1.Equals(gts))
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("outputintent.shall.have.gtspdfa1.and.destoutputintent"));
}
if ("RGB ".Equals(inputColorSpace))
{
if (cmykUsed)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("devicecmyk.may.be.used.only.if.the.file.has.a.cmyk.pdfa.outputIntent"));
}
}
else if ("CMYK".Equals(inputColorSpace))
{
if (rgbUsed)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("devicergb.may.be.used.only.if.the.file.has.a.rgb.pdfa.outputIntent"));
}
}
else
{
if (cmykUsed)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("devicecmyk.may.be.used.only.if.the.file.has.a.cmyk.pdfa.outputIntent"));
}
if (rgbUsed)
{
throw new PdfAConformanceException(obj1, MessageLocalization.GetComposedMessage("devicergb.may.be.used.only.if.the.file.has.a.rgb.pdfa.outputIntent"));
}
}
}
}
}
public virtual byte[] Decode(byte[] b, PdfName filterName, PdfObject decodeParams, PdfDictionary streamDictionary
)
{
PdfNumber wn = streamDictionary.GetAsNumber(PdfName.Width);
PdfNumber hn = streamDictionary.GetAsNumber(PdfName.Height);
if (wn == null || hn == null)
{
throw new PdfException(PdfException.FilterCcittfaxdecodeIsOnlySupportedForImages);
}
int width = wn.IntValue();
int height = hn.IntValue();
PdfDictionary param = decodeParams is PdfDictionary ? (PdfDictionary)decodeParams : null;
int k = 0;
bool blackIs1 = false;
bool byteAlign = false;
if (param != null)
{
PdfNumber kn = param.GetAsNumber(PdfName.K);
if (kn != null)
{
k = kn.IntValue();
}
PdfBoolean bo = param.GetAsBoolean(PdfName.BlackIs1);
if (bo != null)
{
blackIs1 = bo.GetValue();
}
bo = param.GetAsBoolean(PdfName.EncodedByteAlign);
if (bo != null)
{
byteAlign = bo.GetValue();
}
}
byte[] outBuf = new byte[(width + 7) / 8 * height];
TIFFFaxDecompressor decoder = new TIFFFaxDecompressor();
if (k == 0 || k > 0)
{
int tiffT4Options = k > 0 ? TIFFConstants.GROUP3OPT_2DENCODING : 0;
tiffT4Options |= byteAlign ? TIFFConstants.GROUP3OPT_FILLBITS : 0;
decoder.SetOptions(1, TIFFConstants.COMPRESSION_CCITTFAX3, tiffT4Options, 0);
decoder.DecodeRaw(outBuf, b, width, height);
if (decoder.fails > 0)
{
byte[] outBuf2 = new byte[(width + 7) / 8 * height];
int oldFails = decoder.fails;
decoder.SetOptions(1, TIFFConstants.COMPRESSION_CCITTRLE, tiffT4Options, 0);
decoder.DecodeRaw(outBuf2, b, width, height);
if (decoder.fails < oldFails)
{
outBuf = outBuf2;
}
}
}
else
{
TIFFFaxDecoder deca = new TIFFFaxDecoder(1, width, height);
deca.DecodeT6(outBuf, b, 0, height, 0);
}
if (!blackIs1)
{
int len = outBuf.Length;
for (int t = 0; t < len; ++t)
{
outBuf[t] ^= 0xff;
}
}
b = outBuf;
return(b);
}
