/// <summary>
/// Keeps track of the MarkedContent state. </summary>
/// <param name="ocref"> a reference to an OCG dictionary </param>
protected internal virtual void CheckMarkedContentStart(PdfName ocref)
{
if (mc_balance > 0)
{
mc_balance++;
return;
}
if (properties == null)
{
return;
}
PdfDictionary ocdict = properties.GetAsDict(ocref);
if (ocdict == null)
{
return;
}
PdfString ocname = ocdict.GetAsString(PdfName.NAME);
if (ocname == null)
{
return;
}
if (ocgs.Contains(ocname.ToString()))
{
mc_balance++;
}
}
private void AddChildToExistingParent(PdfDictionary fieldDic, ICollection <String> existingFields)
{
PdfDictionary parent = fieldDic.GetAsDictionary(PdfName.Parent);
if (parent == null)
{
return;
}
PdfString parentName = parent.GetAsString(PdfName.T);
if (parentName != null)
{
String name = parentName.ToUnicodeString();
if (existingFields.Contains(name))
{
PdfArray kids = parent.GetAsArray(PdfName.Kids);
kids.Add(fieldDic);
}
else
{
parent.Put(PdfName.Kids, new PdfArray(fieldDic));
AddChildToExistingParent(parent, existingFields);
}
}
}
public SignaturePermissions InspectSignature(AcroFields fields, String name, SignaturePermissions perms)
{
IList <AcroFields.FieldPosition> fps = fields.GetFieldPositions(name);
if (fps != null && fps.Count > 0)
{
AcroFields.FieldPosition fp = fps[0];
Rectangle pos = fp.position;
if (pos.Width == 0 || pos.Height == 0)
{
Console.WriteLine("Invisible signature");
}
else
{
Console.WriteLine("Field on page {0}; llx: {1}, lly: {2}, urx: {3}; ury: {4}",
fp.page, pos.Left, pos.Bottom, pos.Right, pos.Top);
}
}
PdfPKCS7 pkcs7 = VerifySignature(fields, name);
Console.WriteLine("Digest algorithm: " + pkcs7.GetHashAlgorithm());
Console.WriteLine("Encryption algorithm: " + pkcs7.GetEncryptionAlgorithm());
Console.WriteLine("Filter subtype: " + pkcs7.GetFilterSubtype());
X509Certificate cert = pkcs7.SigningCertificate;
Console.WriteLine("Name of the signer: " + CertificateInfo.GetSubjectFields(cert).GetField("CN"));
if (pkcs7.SignName != null)
{
Console.WriteLine("Alternative name of the signer: " + pkcs7.SignName);
}
Console.WriteLine("Signed on: " + pkcs7.SignDate.ToString("yyyy-MM-dd HH:mm:ss.ff"));
if (!pkcs7.TimeStampDate.Equals(DateTime.MaxValue))
{
Console.WriteLine("TimeStamp: " + pkcs7.TimeStampDate.ToString("yyyy-MM-dd HH:mm:ss.ff"));
TimeStampToken ts = pkcs7.TimeStampToken;
Console.WriteLine("TimeStamp service: " + ts.TimeStampInfo.Tsa);
Console.WriteLine("Timestamp verified? " + pkcs7.VerifyTimestampImprint());
}
Console.WriteLine("Location: " + pkcs7.Location);
Console.WriteLine("Reason: " + pkcs7.Reason);
PdfDictionary sigDict = fields.GetSignatureDictionary(name);
PdfString contact = sigDict.GetAsString(PdfName.CONTACTINFO);
if (contact != null)
{
Console.WriteLine("Contact info: " + contact);
}
perms = new SignaturePermissions(sigDict, perms);
Console.WriteLine("Signature type: " + (perms.Certification ? "certification" : "approval"));
Console.WriteLine("Filling out fields allowed: " + perms.FillInAllowed);
Console.WriteLine("Adding annotations allowed: " + perms.AnnotationsAllowed);
foreach (SignaturePermissions.FieldLock Lock in perms.FieldLocks)
{
Console.WriteLine("Lock: " + Lock);
}
return(perms);
}
public virtual void CheckSingleParamConstructorTest()
{
String somePath = "C:\\some\\path\\some-app.exe";
PdfWin win = new PdfWin(new PdfString(somePath));
PdfDictionary pdfWinObj = win.GetPdfObject();
NUnit.Framework.Assert.AreEqual(1, pdfWinObj.Size());
NUnit.Framework.Assert.AreEqual(somePath, pdfWinObj.GetAsString(PdfName.F).ToString());
}
// ---------------------------------------------------------------------------
public void AddKids(PdfArray dests, PdfDictionary outline)
{
while (outline != null)
{
dests.Add(outline.GetAsString(PdfName.TITLE));
dests.Add(outline.GetAsArray(PdfName.DEST));
AddKids(dests, outline.GetAsDict(PdfName.FIRST));
outline = outline.GetAsDict(PdfName.NEXT);
}
}
private String GetPropertyAsString(PdfName name)
{
PdfString text = properties.GetAsString(name);
String result = null;
if (text != null)
{
result = text.ToUnicodeString();
}
return(result);
}
public static List <string> GetPdfLinks(string file, int page)
{
//Open our reader
PdfReader R = new PdfReader(file);
//Get the current page
PdfDictionary PageDictionary = R.GetPageN(page);
//Get all of the annotations for the current page
PdfArray Annots = PageDictionary.GetAsArray(PdfName.ANNOTS);
//Make sure we have something
if ((Annots == null) || (Annots.Length == 0))
{
return(null);
}
List <string> Ret = new List <string>();
//Loop through each annotation
foreach (PdfObject A in Annots.ArrayList)
{
//Convert the itext-specific object as a generic PDF object
PdfDictionary AnnotationDictionary = (PdfDictionary)PdfReader.GetPdfObject(A);
//Make sure this annotation has a link
if (!AnnotationDictionary.Get(PdfName.SUBTYPE).Equals(PdfName.LINK))
{
continue;
}
//Make sure this annotation has an ACTION
if (AnnotationDictionary.Get(PdfName.A) == null)
{
continue;
}
//Get the ACTION for the current annotation
PdfDictionary AnnotationAction = (PdfDictionary)AnnotationDictionary.Get(PdfName.A);
//Test if it is a URI action (There are tons of other types of actions, some of which might mimic URI, such as JavaScript, but those need to be handled seperately)
if (AnnotationAction.Get(PdfName.S).Equals(PdfName.URI))
{
PdfString Destination = AnnotationAction.GetAsString(PdfName.URI);
if (Destination != null)
{
Ret.Add(Destination.ToString());
}
}
}
return(Ret);
}
public virtual String GetActualText()
{
PdfString actualText = properties.GetAsString(PdfName.ActualText);
String result = null;
if (actualText != null)
{
result = actualText.ToUnicodeString();
}
return(result);
}
public virtual void PutTest()
{
PdfName key1 = new PdfName("Key1");
PdfName key2 = new PdfName("Key2");
PdfDictionary dictionary = new PdfDictionary();
PdfTarget target = PdfTarget.Create(dictionary);
target.Put(key1, new PdfNumber(23)).Put(key2, new PdfString("Hello, world!"));
NUnit.Framework.Assert.AreEqual(23, dictionary.GetAsNumber(key1).IntValue());
NUnit.Framework.Assert.AreEqual("Hello, world!", dictionary.GetAsString(key2).GetValue());
}
public static string LinkGrabber(string filePath, string fileName, StreamWriter writer) //Writes found links to CSV and outputs count
{
string error = "\n";
int foundLinks = 0; //Number of links found
PdfReader reader = new PdfReader(filePath);
for (int page = 1; page <= reader.NumberOfPages; page++) //Loops through all the pages
{
PdfDictionary pageDict = reader.GetPageN(page); //Honestly not sure how this works...
PdfArray annotArray = pageDict.GetAsArray(PdfName.ANNOTS);
if (annotArray == null) //If there are no annotations on that page
{
continue;
}
try
{
foreach (PdfObject annot in annotArray) //Loops through every annotation on that page
{
PdfDictionary annotDict = (PdfDictionary)PdfReader.GetPdfObject(annot);
if (annotDict.Get(PdfName.SUBTYPE).Equals(PdfName.LINK) || annotDict.Get(PdfName.SUBTYPE).Equals(PdfName.WIDGET)) //If the annotation is a hyperlink
{
PdfDictionary annotAction = (PdfDictionary)PdfReader.GetPdfObject(annotDict.Get(PdfName.A));
if (annotAction.Get(PdfName.S).Equals(PdfName.URI))
{
string foundURL = annotAction.GetAsString(PdfName.URI).ToString();
try
{
if (foundURL.Substring(0, 4).Equals("http")) //If it's an actual link
{
writer.WriteLine("\"" + foundURL + "\",\"" + fileName + "\""); //Adds the link to the CSV file
foundLinks++;
}
}
catch { } //Intentionally left blank
}
}
}
}
catch
{
error += " WARNING: Problem reading page " + page + "\n";
}
}
return(" - " + foundLinks + " link(s) found" + error);
}
/// <summary>
/// Checks if an OCG dictionary is on the list for removal. </summary>
/// <param name="ocg"> a dictionary </param>
/// <param name="names"> the removal list
/// @return true if the dictionary should be removed </param>
private bool IsToBeRemoved(PdfDictionary ocg, ICollection <string> names)
{
if (ocg == null)
{
return(false);
}
PdfString n = ocg.GetAsString(PdfName.NAME);
if (n == null)
{
return(false);
}
return(names.Contains(n.ToString()));
}
public static string ExtractEdiconData(string srcEdiconPdfFileName)
{
PdfReader reader = null;
//
try
{
reader = new PdfReader(srcEdiconPdfFileName);
//
PdfDictionary root = reader.Catalog;
PdfDictionary documentnames = root.GetAsDict(PdfName.NAMES);
PdfDictionary embeddedfiles = documentnames.GetAsDict(PdfName.EMBEDDEDFILES);
PdfArray filespecs = embeddedfiles.GetAsArray(PdfName.NAMES);
//
for (int i = 0; i < filespecs.Size;)
{
filespecs.GetAsString(i++);
PdfDictionary filespec = filespecs.GetAsDict(i++);
PdfDictionary refs = filespec.GetAsDict(PdfName.EF);
//
foreach (PdfName key in refs.Keys)
{
PRStream stream = (PRStream)PdfReader.GetPdfObject(refs.GetAsIndirectObject(key));
//
var outName = filespec.GetAsString(key).ToString();
//
if (outName.Equals(EDICON_EMBED_FILENAME, StringComparison.OrdinalIgnoreCase))
{
byte[] outByteArray = PdfReader.GetStreamBytes(stream);
string ediconData = Encoding.UTF8.GetString(outByteArray);
return(ediconData);
}
}
}
}
catch (Exception ex)
{
//Console.WriteLine("ExtractEdiconData error: " + ex.Message);
throw new EdiconException("Soubor neobsahuje platnou přílohu Edicon");
}
finally
{
if (reader != null)
{
reader.Close();
}
}
return(null);
}
static PdfName getSignatureHashKey(PdfDictionary dic, bool encrypted)
{
PdfString contents = dic.GetAsString(PdfName.CONTENTS);
byte[] bc = contents.GetOriginalBytes();
if (PdfName.ETSI_RFC3161.Equals(PdfReader.GetPdfObject(dic.Get(PdfName.SUBFILTER))))
{
using (Asn1InputStream din = new Asn1InputStream(bc))
{
Asn1Object pkcs = din.ReadObject();
bc = pkcs.GetEncoded();
}
}
byte[] bt = hashBytesSha1(bc);
return(new PdfName(Utilities.ConvertToHex(bt)));
}
private PdfName GetSignatureHashKey(String signatureName)
{
PdfDictionary dic = acroFields.GetSignatureDictionary(signatureName);
PdfString contents = dic.GetAsString(PdfName.CONTENTS);
byte[] bc = contents.GetOriginalBytes();
byte[] bt = null;
if (PdfName.ETSI_RFC3161.Equals(dic.GetAsName(PdfName.SUBFILTER)))
{
Asn1InputStream din = new Asn1InputStream(new MemoryStream(bc));
Asn1Object pkcs = din.ReadObject();
bc = pkcs.GetEncoded();
}
bt = HashBytesSha1(bc);
return(new PdfName(Utilities.ConvertToHex(bt)));
}
/// <exception cref="Org.BouncyCastle.Security.SecurityUtilityException"/>
/// <exception cref="System.IO.IOException"/>
private PdfName GetSignatureHashKey(String signatureName)
{
PdfDictionary dic = sgnUtil.GetSignatureDictionary(signatureName);
PdfString contents = dic.GetAsString(PdfName.Contents);
byte[] bc = PdfEncodings.ConvertToBytes(contents.GetValue(), null);
byte[] bt = null;
if (PdfName.ETSI_RFC3161.Equals(dic.GetAsName(PdfName.SubFilter)))
{
Asn1InputStream din = new Asn1InputStream(new MemoryStream(bc));
Asn1Object pkcs = din.ReadObject();
bc = pkcs.GetEncoded();
}
bt = HashBytesSha1(bc);
return(new PdfName(ConvertToHex(bt)));
}
public static (SignaturePermissions, FileDetailsModel) InspectSignature(FileDetailsModel model, PdfDocument pdfDoc, SignatureUtil signUtil, PdfAcroForm form,
String name, SignaturePermissions perms)
{
IList <PdfWidgetAnnotation> widgets = form.GetField(name).GetWidgets();
PdfPKCS7 pkcs7 = null;
(pkcs7, model) = VerifySignature(model, signUtil, name);
logger.Error("Digest algorithm: " + pkcs7.GetHashAlgorithm());
logger.Error("Encryption algorithm: " + pkcs7.GetEncryptionAlgorithm());
logger.Error("Filter subtype: " + pkcs7.GetFilterSubtype());
X509Certificate cert = (X509Certificate)pkcs7.GetSigningCertificate();
logger.Error("Name of the signer: "
+ iText.Signatures.CertificateInfo.GetSubjectFields(cert).GetField("CN"));
model.SignerName = iText.Signatures.CertificateInfo.GetSubjectFields(cert).GetField("CN");
if (pkcs7.GetSignName() != null)
{
logger.Error("Alternative name of the signer: " + pkcs7.GetSignName());
}
logger.Error("Signed on: " + pkcs7.GetSignDate().ToUniversalTime().ToString("yyyy-MM-dd"));
model.SignatureDate = pkcs7.GetSignDate().ToUniversalTime().ToString("yyyy-MM-dd");
logger.Error("Location: " + pkcs7.GetLocation());
logger.Error("Reason: " + pkcs7.GetReason());
PdfDictionary sigDict = signUtil.GetSignatureDictionary(name);
PdfString contact = sigDict.GetAsString(PdfName.ContactInfo);
if (contact != null)
{
logger.Error("Contact info: " + contact);
}
return(perms, model);
}
private void GetAllFieldNames(PdfArray fields, ICollection <String> existingFields)
{
foreach (PdfObject field in fields)
{
PdfDictionary dic = (PdfDictionary)field;
PdfString name = dic.GetAsString(PdfName.T);
if (name != null)
{
existingFields.Add(name.ToUnicodeString());
}
PdfArray kids = dic.GetAsArray(PdfName.Kids);
if (kids != null)
{
GetAllFieldNames(kids, existingFields);
}
}
}
protected void ManipulatePdf(String dest)
{
PdfDocument pdfDoc = new PdfDocument(new PdfReader(SRC), new PdfWriter(dest));
Dictionary <String, PdfString> renamed = new Dictionary <String, PdfString>();
PdfNameTree nameTree = pdfDoc.GetCatalog().GetNameTree(PdfName.Dests);
IDictionary <String, PdfObject> names = nameTree.GetNames();
List <String> keys = new List <string>(names.Keys);
// Loop over all named destinations and rename its string values with new names
foreach (String key in keys)
{
String newName = "new" + key;
names.Add(newName, names[key]);
names.Remove(key);
renamed.Add(key, new PdfString(newName));
}
// Specify that the name tree has been modified
// This implies that the name tree will be rewritten on close() method.
nameTree.SetModified();
PdfDictionary page = pdfDoc.GetPage(1).GetPdfObject();
PdfArray annotations = page.GetAsArray(PdfName.Annots);
// Loop over all link annotations of the first page and change their destinations.
for (int i = 0; i < annotations.Size(); i++)
{
PdfDictionary annotation = annotations.GetAsDictionary(i);
PdfDictionary action = annotation.GetAsDictionary(PdfName.A);
if (action == null)
{
continue;
}
PdfString n = action.GetAsString(PdfName.D);
if (n != null && renamed.ContainsKey(n.ToString()))
{
action.Put(PdfName.D, renamed[n.ToString()]);
}
}
pdfDoc.Close();
}
/// <summary>
/// Parses a stream object and removes OCGs. </summary>
/// <param name="stream"> a stream object </param>
/// <param name="resources"> the resources dictionary of that object (containing info about the OCGs) </param>
public virtual void Parse(PRStream stream, PdfDictionary resources)
{
baos = new MemoryStream();
properties = resources.GetAsDict(PdfName.PROPERTIES);
xobj = new HashSet2 <PdfName>();
PdfDictionary xobjects = resources.GetAsDict(PdfName.XOBJECT);
if (xobjects != null)
{
// remove XObject (form or image) that belong to an OCG that needs to be removed
foreach (PdfName name in xobjects.Keys)
{
PRStream xobject = (PRStream)xobjects.GetAsStream(name);
PdfDictionary oc = xobject.GetAsDict(PdfName.OC);
if (oc != null)
{
PdfString ocname = oc.GetAsString(PdfName.NAME);
if (ocname != null && ocgs.Contains(ocname.ToString()))
{
xobj.Add(name);
}
}
}
foreach (PdfName name in xobj)
{
xobjects.Remove(name);
}
}
// parse the content stream
byte[] contentBytes = PdfReader.GetStreamBytes(stream);
PRTokeniser tokeniser = new PRTokeniser(new RandomAccessFileOrArray(contentBytes));
PdfContentParser ps = new PdfContentParser(tokeniser);
List <PdfObject> operands = new List <PdfObject>();
while (ps.Parse(operands).Count > 0)
{
PdfLiteral @operator = (PdfLiteral)operands[operands.Count - 1];
ProcessOperator(this, @operator, operands);
}
baos.Flush();
baos.Close();
stream.SetData(baos.GetBuffer());
}
internal void ExtractAttachments(string file_name, string folderName, PdfWriter write)
{
PdfDictionary documentNames = null;
PdfDictionary embeddedFiles = null;
PdfDictionary fileArray = null;
PdfDictionary file = null;
PRStream stream = null;
PdfReader reader = new PdfReader(file_name);
PdfDictionary catalog = reader.Catalog;
documentNames = (PdfDictionary)PdfReader.GetPdfObject(catalog.Get(PdfName.NAMES));
if (documentNames != null)
{
embeddedFiles = (PdfDictionary)PdfReader.GetPdfObject(documentNames.Get(PdfName.EMBEDDEDFILES));
if (embeddedFiles != null)
{
PdfArray filespecs = embeddedFiles.GetAsArray(PdfName.NAMES);
for (int i = 0; i < filespecs.Size; i++)
{
i++;
fileArray = filespecs.GetAsDict(i);
file = fileArray.GetAsDict(PdfName.EF);
foreach (PdfName key in file.Keys)
{
stream = (PRStream)PdfReader.GetPdfObject(file.GetAsIndirectObject(key));
string attachedFileName = folderName + fileArray.GetAsString(key).ToString();
byte[] attachedFileBytes = PdfReader.GetStreamBytes(stream);
//graba el anexo extraido
System.IO.File.WriteAllBytes(attachedFileName, attachedFileBytes);
//adjunta los anexos
PdfFileSpecification pfs = PdfFileSpecification.FileEmbedded(write, attachedFileName, fileArray.GetAsString(key).ToString(), null);
write.AddFileAttachment(pfs);
//borramos los archivos extraidos
System.IO.File.Delete(attachedFileName);
}
}
}
}
}
internal static void ValidateTemplateForSignedDeferredResult(String output, String sigFieldName, PdfName filter
, PdfName subFilter, int estimatedSize)
{
PdfDocument outDocument = new PdfDocument(new PdfReader(output));
PdfObject outSigDictObj = PdfAcroForm.GetAcroForm(outDocument, false).GetField(sigFieldName).GetValue();
NUnit.Framework.Assert.IsTrue(outSigDictObj.IsDictionary());
PdfDictionary outSigDict = (PdfDictionary)outSigDictObj;
PdfArray byteRange = outSigDict.GetAsArray(PdfName.ByteRange);
NUnit.Framework.Assert.IsNotNull(byteRange);
NUnit.Framework.Assert.IsTrue(byteRange.Size() == 4);
NUnit.Framework.Assert.AreEqual(filter, outSigDict.GetAsName(PdfName.Filter));
NUnit.Framework.Assert.AreEqual(subFilter, outSigDict.GetAsName(PdfName.SubFilter));
PdfString outSigContents = outSigDict.GetAsString(PdfName.Contents);
NUnit.Framework.Assert.IsTrue(outSigContents.IsHexWriting());
NUnit.Framework.Assert.AreEqual(new byte[estimatedSize], outSigContents.GetValueBytes());
}
protected internal override void CheckFileSpec(PdfDictionary fileSpec)
{
PdfName relationship = fileSpec.GetAsName(PdfName.AFRelationship);
if (relationship == null || !allowedAFRelationships.Contains(relationship))
{
throw new PdfAConformanceException(PdfAConformanceException.FileSpecificationDictionaryShallContainOneOfThePredefinedAFRelationshipKeys
);
}
if (fileSpec.ContainsKey(PdfName.EF))
{
if (!fileSpec.ContainsKey(PdfName.F) || !fileSpec.ContainsKey(PdfName.UF) || !fileSpec.ContainsKey(PdfName
.Desc))
{
throw new PdfAConformanceException(PdfAConformanceException.FileSpecificationDictionaryShallContainFKeyUFKeyAndDescKey
);
}
PdfDictionary ef = fileSpec.GetAsDictionary(PdfName.EF);
PdfStream embeddedFile = ef.GetAsStream(PdfName.F);
if (embeddedFile == null)
{
throw new PdfAConformanceException(PdfAConformanceException.EFKeyOfFileSpecificationDictionaryShallContainDictionaryWithValidFKey
);
}
if (!embeddedFile.ContainsKey(PdfName.Subtype))
{
throw new PdfAConformanceException(PdfAConformanceException.MimeTypeShallBeSpecifiedUsingTheSubtypeKeyOfTheFileSpecificationStreamDictionary
);
}
PdfDictionary @params = embeddedFile.GetAsDictionary(PdfName.Params);
if (@params == null)
{
throw new PdfAConformanceException(PdfAConformanceException.EmbeddedFileShallContainParamsKeyWithDictionaryAsValue
);
}
if (@params.GetAsString(PdfName.ModDate) == null)
{
throw new PdfAConformanceException(PdfAConformanceException.EmbeddedFileShallContainParamsKeyWithValidModdateKey
);
}
}
}
private void AddChildToExistingParent(PdfDictionary fieldDic, ICollection <String> existingFields, IDictionary
<String, PdfFormField> fieldsTo)
{
PdfDictionary parent = fieldDic.GetAsDictionary(PdfName.Parent);
if (parent == null)
{
return;
}
PdfString parentName = parent.GetAsString(PdfName.T);
if (parentName != null)
{
String name = parentName.ToUnicodeString();
if (existingFields.Contains(name))
{
PdfArray kids = parent.GetAsArray(PdfName.Kids);
foreach (PdfObject kid in kids)
{
if (((PdfDictionary)kid).Get(PdfName.T).Equals(fieldDic.Get(PdfName.T)))
{
PdfFormField kidField = MakeFormField(kid);
PdfFormField field = MakeFormField(fieldDic);
if (kidField == null || field == null)
{
continue;
}
fieldsTo.Put(kidField.GetFieldName().ToUnicodeString(), kidField);
PdfFormField mergedField = MergeFieldsWithTheSameName(field);
formTo.GetFormFields().Put(mergedField.GetFieldName().ToUnicodeString(), mergedField);
return;
}
}
kids.Add(fieldDic);
}
else
{
parent.Put(PdfName.Kids, new PdfArray(fieldDic));
AddChildToExistingParent(parent, existingFields);
}
}
}
public string Pdf_get_metadata(string path)
{
PdfDocument pdfDoc = new PdfDocument(new PdfReader(path));
Document doc = new Document(pdfDoc);
PdfFont pdfFont;
pdfFont = null;
PdfDictionary infoDictionary = pdfDoc.GetTrailer().GetAsDictionary(PdfName.Info);
string metadatastring = $"Metadata: {Environment.NewLine}";
foreach (PdfName key in infoDictionary.KeySet())
{
string keytext = infoDictionary.GetAsString(key).ToUnicodeString();
if (key == PdfName.CreationDate | key == PdfName.ModDate)
{
DateTime date = PdfDate.Decode(keytext);
keytext = date.ToString("dd/MM/yyyy HH:mm:ss");
}
string cleankey = ($"{ key }").Replace("/", "");
metadatastring += $"{cleankey}: {keytext}{Environment.NewLine}{Environment.NewLine}";
}
metadatastring += $"-----------------{Environment.NewLine}";
HashSet <string> fontinfo = Find_fonts(path);
if (fontinfo != null && fontinfo.Count > 0)
{
metadatastring += $"OCR present because pdf has {fontinfo.Count} fonts.{Environment.NewLine}-----------------{Environment.NewLine}";
}
else
{
metadatastring += $"OCR NOT present because pdf has no fonts.{Environment.NewLine}-----------------{Environment.NewLine}";
}
metadatastring += $"Pages: {pdfDoc.GetNumberOfPages().ToString()}" + Environment.NewLine;
return(metadatastring);
}
public static string DNATool(string filePath, string fileName, string siteAddress, StreamWriter writer) //Writes found assets to CSV and outputs any errors
{
string error = "";
PdfReader reader = new PdfReader(filePath);
for (int page = 1; page <= reader.NumberOfPages; page++) //Loops through all the pages
{
PdfDictionary pageDict = reader.GetPageN(page); //Honestly not sure how this works...
PdfArray annotArray = pageDict.GetAsArray(PdfName.ANNOTS);
if (annotArray == null) //If there are no annotations on that page
{
error += "WARNING: No annotaions found (Page " + page + ")\n";
continue;
}
foreach (PdfObject annot in annotArray) //Loops through every annotation on that page
{
PdfDictionary annotDict = (PdfDictionary)PdfReader.GetPdfObject(annot);
if (annotDict.Get(PdfName.SUBTYPE).Equals(PdfName.LINK) || annotDict.Get(PdfName.SUBTYPE).Equals(PdfName.WIDGET)) //If the annotation is a hyperlink
{
PdfDictionary annotAction = (PdfDictionary)PdfReader.GetPdfObject(annotDict.Get(PdfName.A));
if (annotAction.Get(PdfName.S).Equals(PdfName.URI))
{
string foundURL = annotAction.GetAsString(PdfName.URI).ToString();
int index = foundURL.IndexOf("assetnum"); //Searches for blue box links
if (index != -1) //If it's a blue box
{
string assetNum = foundURL.Substring(index + 9, 5); //From counting
writer.WriteLine("\"" + assetNum + "\",,\"" + siteAddress + "/" + fileName + "\",,\"" + fileName + "\""); //Adds the asset to the CSV file
}
}
}
}
}
return(error);
}
private void FillFontDescriptor(PdfDictionary fontDesc)
{
if (fontDesc == null)
{
return;
}
PdfNumber v = fontDesc.GetAsNumber(PdfName.ItalicAngle);
if (v != null)
{
SetItalicAngle(v.IntValue());
}
v = fontDesc.GetAsNumber(PdfName.FontWeight);
if (v != null)
{
SetFontWeight(v.IntValue());
}
PdfName fontStretch = fontDesc.GetAsName(PdfName.FontStretch);
if (fontStretch != null)
{
SetFontStretch(fontStretch.GetValue());
}
PdfName fontName = fontDesc.GetAsName(PdfName.FontName);
if (fontName != null)
{
SetFontName(fontName.GetValue());
}
PdfString fontFamily = fontDesc.GetAsString(PdfName.FontFamily);
if (fontFamily != null)
{
SetFontFamily(fontFamily.GetValue());
}
}
private void InitKeyAndReadDictionary(PdfDictionary encryptionDictionary, byte[] password)
{
try {
if (password == null)
{
password = new byte[0];
}
else
{
if (password.Length > 127)
{
password = JavaUtil.ArraysCopyOf(password, 127);
}
}
isPdf2 = encryptionDictionary.GetAsNumber(PdfName.R).GetValue() == 6;
byte[] oValue = GetIsoBytes(encryptionDictionary.GetAsString(PdfName.O));
byte[] uValue = GetIsoBytes(encryptionDictionary.GetAsString(PdfName.U));
byte[] oeValue = GetIsoBytes(encryptionDictionary.GetAsString(PdfName.OE));
byte[] ueValue = GetIsoBytes(encryptionDictionary.GetAsString(PdfName.UE));
byte[] perms = GetIsoBytes(encryptionDictionary.GetAsString(PdfName.Perms));
PdfNumber pValue = (PdfNumber)encryptionDictionary.Get(PdfName.P);
this.permissions = pValue.LongValue();
byte[] hash;
hash = ComputeHash(password, oValue, VALIDATION_SALT_OFFSET, SALT_LENGTH, uValue);
usedOwnerPassword = CompareArray(hash, oValue, 32);
if (usedOwnerPassword)
{
hash = ComputeHash(password, oValue, KEY_SALT_OFFSET, SALT_LENGTH, uValue);
AESCipherCBCnoPad ac = new AESCipherCBCnoPad(false, hash);
nextObjectKey = ac.ProcessBlock(oeValue, 0, oeValue.Length);
}
else
{
hash = ComputeHash(password, uValue, VALIDATION_SALT_OFFSET, SALT_LENGTH);
if (!CompareArray(hash, uValue, 32))
{
throw new BadPasswordException(PdfException.BadUserPassword);
}
hash = ComputeHash(password, uValue, KEY_SALT_OFFSET, SALT_LENGTH);
AESCipherCBCnoPad ac = new AESCipherCBCnoPad(false, hash);
nextObjectKey = ac.ProcessBlock(ueValue, 0, ueValue.Length);
}
nextObjectKeySize = 32;
AESCipherCBCnoPad ac_1 = new AESCipherCBCnoPad(false, nextObjectKey);
byte[] decPerms = ac_1.ProcessBlock(perms, 0, perms.Length);
if (decPerms[9] != (byte)'a' || decPerms[10] != (byte)'d' || decPerms[11] != (byte)'b')
{
throw new BadPasswordException(PdfException.BadUserPassword);
}
int permissionsDecoded = (decPerms[0] & 0xff) | ((decPerms[1] & 0xff) << 8) | ((decPerms[2] & 0xff) << 16)
| ((decPerms[3] & 0xff) << 24);
bool encryptMetadata = decPerms[8] == (byte)'T';
bool?encryptMetadataEntry = encryptionDictionary.GetAsBool(PdfName.EncryptMetadata);
if (permissionsDecoded != permissions || encryptMetadataEntry != null && encryptMetadata != encryptMetadataEntry
)
{
ILog logger = LogManager.GetLogger(typeof(iText.Kernel.Crypto.Securityhandler.StandardHandlerUsingAes256));
logger.Error(iText.IO.LogMessageConstant.ENCRYPTION_ENTRIES_P_AND_ENCRYPT_METADATA_NOT_CORRESPOND_PERMS_ENTRY
);
}
this.permissions = permissionsDecoded;
this.encryptMetadata = encryptMetadata;
}
catch (BadPasswordException ex) {
throw;
}
catch (Exception ex) {
throw new PdfException(PdfException.PdfEncryption, ex);
}
}
/**
* Converts an annotation structure item to a Form XObject annotation.
* @param item the structure item
* @throws IOException
*/
protected void ConvertToXObject(StructureObject item)
{
PdfDictionary structElem = item.GetStructElem();
if (structElem == null)
{
return;
}
PdfDictionary dict = item.GetObjAsDict();
if (dict == null || !dict.CheckType(PdfName.ANNOT))
{
return;
}
PdfDictionary ap = dict.GetAsDict(PdfName.AP);
if (ap == null)
{
return;
}
PdfNumber structParent = dict.GetAsNumber(PdfName.STRUCTPARENT);
if (structParent == null)
{
return;
}
PdfStream stream = ap.GetAsStream(PdfName.N);
if (stream == null)
{
return;
}
stream.Put(PdfName.STRUCTPARENT, structParent);
PdfIndirectReference xobjr = ap.GetAsIndirectObject(PdfName.N);
if (xobjr == null)
{
return;
}
// remove the annotation from the page
for (int i = 0; i < annots.Length; i++)
{
PdfIndirectReference annotref = annots.GetAsIndirectObject(i);
if (item.GetObjRef().Number == annotref.Number)
{
annots.Remove(i);
break;
}
}
// replace the existing attributes by a PrintField attribute
PdfDictionary attribute = new PdfDictionary();
attribute.Put(PdfName.O, PdfName.PRINTFIELD);
PdfString description = dict.GetAsString(PdfName.TU);
if (description == null)
{
description = dict.GetAsString(PdfName.T);
}
if (PdfName.BTN.Equals(dict.Get(PdfName.FT)))
{
PdfNumber fflags = dict.GetAsNumber(PdfName.FF);
if (fflags != null)
{
int ff = fflags.IntValue;
if ((ff & PdfFormField.FF_PUSHBUTTON) != 0)
{
attribute.Put(PdfName.ROLE, PdfName.PB);
}
// I don't think the condition below will ever be true
if ((ff & PdfFormField.FF_RADIO) != 0)
{
attribute.Put(PdfName.ROLE, PdfName.rb);
}
else
{
attribute.Put(PdfName.ROLE, PdfName.CB);
}
}
}
else
{
attribute.Put(PdfName.ROLE, PdfName.TV);
}
attribute.Put(PdfName.DESC, description);
// Updating the values of the StructElem dictionary
PdfString t = structElem.GetAsString(PdfName.T);
if (t == null || t.ToString().Trim().Length == 0)
{
structElem.Put(PdfName.T, dict.GetAsString(PdfName.T));
}
structElem.Put(PdfName.A, attribute);
structElem.Put(PdfName.S, PdfName.P);
structElem.Put(PdfName.PG, pageref);
// Defining a new MCID
int mcid = items.ProcessMCID(structParents, item.GetRef());
LOGGER.Info("Using MCID " + mcid);
structElem.Put(PdfName.K, new PdfNumber(mcid));
// removing the annotation from the parent tree
items.RemoveFromParentTree(structParent);
// Adding the XObject to the page
PdfName xobj = new PdfName("XObj" + structParent.IntValue);
LOGGER.Info("Creating XObject with name " + xobj);
xobjects.Put(xobj, xobjr);
PdfArray array = dict.GetAsArray(PdfName.RECT);
// Getting the position of the annotation
Rectangle rect = new Rectangle(
array.GetAsNumber(0).FloatValue, array.GetAsNumber(1).FloatValue,
array.GetAsNumber(2).FloatValue, array.GetAsNumber(3).FloatValue);
rect.Normalize();
// A Do operator is forbidden inside a text block
if (inText && !btWrite)
{
LOGGER.Debug("Introducing extra ET");
byte[] bytes = Encoding.ASCII.GetBytes("ET\n");
baos.Write(bytes, 0, bytes.Length);
etExtra = true;
}
// Writing the marked-content sequence with the Do operator
// Note that the position assumes that the CTM wasn't changed in the graphics state
// TODO: do the math if the CTM did change!
ByteBuffer buf = new ByteBuffer();
buf.Append("/P <</MCID ");
buf.Append(mcid);
buf.Append(">> BDC\n");
buf.Append("q 1 0 0 1 ");
buf.Append(rect.Left.ToString(CultureInfo.InvariantCulture));
buf.Append(" ");
buf.Append(rect.Bottom.ToString(CultureInfo.InvariantCulture));
buf.Append(" cm ");
buf.Append(xobj.GetBytes());
buf.Append(" Do Q\n");
buf.Append("EMC\n");
buf.Flush();
buf.WriteTo(baos);
// if we were inside a text block, we've introduced an ET, so we'll need to write a BT
if (inText)
{
btWrite = true;
}
}
public SignaturePermissions InspectSignature(PdfDocument pdfDoc, SignatureUtil signUtil, PdfAcroForm form,
String name, SignaturePermissions perms)
{
IList <PdfWidgetAnnotation> widgets = form.GetField(name).GetWidgets();
// Check the visibility of the signature annotation
if (widgets != null && widgets.Count > 0)
{
Rectangle pos = widgets[0].GetRectangle().ToRectangle();
int pageNum = pdfDoc.GetPageNumber(widgets[0].GetPage());
if (pos.GetWidth() == 0 || pos.GetHeight() == 0)
{
Console.Out.WriteLine("Invisible signature");
}
else
{
Console.Out.WriteLine(String.Format("Field on page {0}; llx: {1}, lly: {2}, urx: {3}; ury: {4}",
pageNum, pos.GetLeft(), pos.GetBottom(), pos.GetRight(), pos.GetTop()));
}
}
/* Find out how the message digest of the PDF bytes was created,
* how these bytes and additional attributes were signed
* and how the signed bytes are stored in the PDF
*/
PdfPKCS7 pkcs7 = VerifySignature(signUtil, name);
Console.Out.WriteLine("Digest algorithm: " + pkcs7.GetHashAlgorithm());
Console.Out.WriteLine("Encryption algorithm: " + pkcs7.GetEncryptionAlgorithm());
Console.Out.WriteLine("Filter subtype: " + pkcs7.GetFilterSubtype());
// Get the signing certificate to find out the name of the signer.
X509Certificate cert = (X509Certificate)pkcs7.GetSigningCertificate();
Console.Out.WriteLine("Name of the signer: "
+ iText.Signatures.CertificateInfo.GetSubjectFields(cert).GetField("CN"));
if (pkcs7.GetSignName() != null)
{
Console.Out.WriteLine("Alternative name of the signer: " + pkcs7.GetSignName());
}
/* Get the signing time.
* Mind that the getSignDate() method is not that secure as timestamp
* because it's based only on signature author claim. I.e. this value can only be trusted
* if signature is trusted and it cannot be used for signature verification.
*/
Console.Out.WriteLine("Signed on: " + pkcs7.GetSignDate().ToUniversalTime().ToString("yyyy-MM-dd"));
/* If a timestamp was applied, retrieve information about it.
* Timestamp is a secure source of signature creation time,
* because it's based on Time Stamping Authority service.
*/
if (TimestampConstants.UNDEFINED_TIMESTAMP_DATE != pkcs7.GetTimeStampDate())
{
Console.Out.WriteLine("TimeStamp: " +
pkcs7.GetTimeStampDate().ToUniversalTime().ToString("yyyy-MM-dd"));
TimeStampToken ts = pkcs7.GetTimeStampToken();
Console.Out.WriteLine("TimeStamp service: " + ts.TimeStampInfo.Tsa);
Console.Out.WriteLine("Timestamp verified? " + pkcs7.VerifyTimestampImprint());
}
Console.Out.WriteLine("Location: " + pkcs7.GetLocation());
Console.Out.WriteLine("Reason: " + pkcs7.GetReason());
/* If you want less common entries than PdfPKCS7 object has, such as the contact info,
* you should use the signature dictionary and get the properties by name.
*/
PdfDictionary sigDict = signUtil.GetSignatureDictionary(name);
PdfString contact = sigDict.GetAsString(PdfName.ContactInfo);
if (contact != null)
{
Console.Out.WriteLine("Contact info: " + contact);
}
/* Every new signature can add more restrictions to a document, but it can’t take away previous restrictions.
* So if you want to retrieve information about signatures restrictions, you need to pass
* the SignaturePermissions instance of the previous signature, or null if there was none.
*/
perms = new SignaturePermissions(sigDict, perms);
Console.Out.WriteLine("Signature type: " + (perms.IsCertification() ? "certification" : "approval"));
Console.Out.WriteLine("Filling out fields allowed: " + perms.IsFillInAllowed());
Console.Out.WriteLine("Adding annotations allowed: " + perms.IsAnnotationsAllowed());
foreach (SignaturePermissions.FieldLock Lock in perms.GetFieldLocks())
{
Console.Out.WriteLine("Lock: " + Lock);
}
return(perms);
}
public ActionResult Index()
{
#region [Search Annotations]
List <AnnotC> Annot = new List <AnnotC>();
PdfReader vAnnotedReader = new PdfReader(Server.MapPath("~/Data/Extender.pdf"));
for (int i = 1; i <= vAnnotedReader.NumberOfPages; i++)
{
PdfArray array = vAnnotedReader.GetPageN(i).GetAsArray(PdfName.ANNOTS);
if (array == null)
{
continue;
}
//AnnotC c = new AnnotC();
//c.Page = i;
//c.Annot = vAnnotedReader.GetPageN(i);
//Annot.Add(c);
for (int j = 0; j < array.Size; j++)
{
PdfDictionary annot = array.GetAsDict(j);
PdfString text = annot.GetAsString(PdfName.CONTENTS);
if (text != null)
{
AnnotC c = new AnnotC();
c.Page = i;
c.Annot = annot;
Annot.Add(c);
}
}
}
PdfReader vAnnotedReader2 = new PdfReader(Server.MapPath("~/Data/Ori.pdf"));
for (int i = 1; i <= vAnnotedReader2.NumberOfPages; i++)
{
PdfArray array = vAnnotedReader2.GetPageN(i).GetAsArray(PdfName.ANNOTS);
if (array == null)
{
continue;
}
for (int j = 0; j < array.Size; j++)
{
PdfDictionary annot = array.GetAsDict(j);
PdfString text = annot.GetAsString(PdfName.CONTENTS);
if (text != null)
{
AnnotC c = new AnnotC();
c.Page = i;
c.Annot = annot;
Annot.Add(c);
}
//PdfAnnotation test = annot;
}
}
//var json = new JavaScriptSerializer().Serialize(Annot);
PdfReader vOriginalReader = new PdfReader(Server.MapPath("~/Data/Ori.pdf"));
var pDestinationFileName = Server.MapPath("~/Data/Merge.pdf");
for (int vPageNumber = 1; vPageNumber <= vOriginalReader.NumberOfPages; vPageNumber++)
{
PdfDictionary vOriginalPage = vOriginalReader.GetPageN(vPageNumber);
foreach (var x in Annot)
{
if (x.Page == vPageNumber)
{
//PdfAnnotation annotation = PdfAnnotation.CreateText(vStamper.Writer, x.Annot.GetAsName(PdfRectangle.ARRAY), "Note", "This document is written by Dara Yuk", false, "Note");
PdfString contents = x.Annot.GetAsString(PdfName.CONTENTS);
String value = contents.ToString();
Rectangle rect = Rectangle()
//vOriginalReader.GetPageN(vPageNumber).MergeDifferent(x.Annot);
//PdfAnnotation test = x.Annot.GetAsString(PdfName.ann)
vOriginalReader.GetPageN(vPageNumber).Put(PdfName.ANNOT, x.Annot);
//vOriginalReader.GetPageN(vPageNumber).Merge(x.Annot);
}
}
//vStamper.MarkUsed(vOriginalPage);
}
PdfStamper vStamper = new PdfStamper(vOriginalReader, new FileStream(pDestinationFileName, FileMode.Create));
vStamper.Close();
vAnnotedReader.Close();
vOriginalReader.Close();
#endregion
#region [Merging]
/*//set the output file
* using (Stream outputPdfStream = new FileStream("C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Merge.pdf", FileMode.Create, FileAccess.Write, FileShare.None))
* {
* //select the PDF files you want to merge, in this example I only merged 2 files, but you can do more.
* string[] pdfArrayFiles = { "C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Extender.pdf", "C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Ori.pdf" };
*
* //create a new document
* Document document = new Document();
* //use PdfSmartCopy to merge PDF files to output file (or stream)
* PdfSmartCopy copy = new PdfSmartCopy(document, outputPdfStream);
* //open the document
* document.Open();
* //set the reader to read files and add pages
* PdfReader reader;
* int n;
* for (int i = 0; i < pdfArrayFiles.Length; i++)
* {
* reader = new PdfReader(pdfArrayFiles[i]);
* n = reader.NumberOfPages;
* for (int page = 0; page < n;)
* {
* copy.AddPage(copy.GetImportedPage(reader, ++page));
* }
* }
* document.Close();
* }*/
#endregion
#region [3]
//Stream sourcePdfStream = new FileStream("C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Extender.pdf", FileMode.Create, FileAccess.Write, FileShare.None);
//Stream destinationPdfStream = new FileStream("C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Ori.pdf", FileMode.Create, FileAccess.Write, FileShare.None);
//var output = new MemoryStream();
//using (var document = new Document(PageSize.A4, 70f, 70f, 20f, 20f))
//{
// var readers = new List<PdfReader>();
// var writer = PdfWriter.GetInstance(document, output);
// writer.CloseStream = false;
// document.Open();
// const Int32 requiredWidth = 500;
// const Int32 zeroBottom = 647;
// const Int32 left = 50;
// Action<String, Action> inlcudePdfInDocument = (filename, e) =>
// {
// var reader = new PdfReader(filename);
// readers.Add(reader);
// var pageCount = reader.NumberOfPages;
// for (var i = 0; i < pageCount; i++)
// {
// e?.Invoke();
// var imp = writer.GetImportedPage(reader, (i + 1));
// var scale = requiredWidth / imp.Width;
// var height = imp.Height * scale;
// writer.DirectContent.AddTemplate(imp, scale, 0, 0, scale, left, zeroBottom - height);
// var annots = reader.GetPageN(i + 1).GetAsArray(PdfName.ANNOTS);
// if (annots != null && annots.Size != 0)
// {
// foreach (var a in annots)
// {
// var newannot = new PdfAnnotation(writer, new Rectangle(0, 0));
// var annotObj = (PdfDictionary)PdfReader.GetPdfObject(a);
// newannot.PutAll(annotObj);
// var rect = newannot.GetAsArray(PdfName.RECT);
// rect[0] = new PdfNumber(((PdfNumber)rect[0]).DoubleValue * scale + left); // Left
// rect[1] = new PdfNumber(((PdfNumber)rect[1]).DoubleValue * scale); // top
// rect[2] = new PdfNumber(((PdfNumber)rect[2]).DoubleValue * scale + left); // right
// rect[3] = new PdfNumber(((PdfNumber)rect[3]).DoubleValue * scale); // bottom
// writer.AddAnnotation(newannot);
// }
// }
// document.NewPage();
// }
// };
// List<String> pdfs = new List<string>();
// pdfs.Add("C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Extender.pdf");
// pdfs.Add("C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Ori.pdf");
// foreach (var apprPdf in pdfs)
// {
// document.NewPage();
// inlcudePdfInDocument(apprPdf, null);
// }
// document.Close();
// readers.ForEach(x => x.Close());
//}
//output.Position = 0;
//FileStream F = new FileStream("C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Merge.pdf", FileMode.Create, FileAccess.Write, FileShare.None);
//output.WriteTo(F);
//F.Close();
//output.Close();
#endregion
#region [Add Annot]
//path to source file
//String source = "C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Extender.pdf";
////create PdfReader object to read the source file
//PdfReader reader = new PdfReader(source);
////create PdfStamper object to modify the content of the PDF
//PdfStamper stamp = new PdfStamper(reader, new FileStream("C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Extender - Copy.pdf", FileMode.Create));
////create a Rectangle object to deine the size and location of the annotation
//Rectangle rect = new Rectangle(10, 30, 50, 50);
////create a PdfAnnotation object
//PdfAnnotation annotation = PdfAnnotation.CreateText(stamp.Writer, rect, "Note", "This document is written by Dara Yuk", false, "Note");
////loop through the document and add the annotation to every page
//for (int page = 1; page <= reader.NumberOfPages; page++)
// stamp.AddAnnotation(annotation, page);
//stamp.Close();
//System.Diagnostics.Process.Start("C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Extender - Copy.pdf");
//Console.Read();
#endregion
#region [Tes Copy Annot]
//Stream sourcePdfStream = new FileStream("C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Extender.pdf", FileMode.Create, FileAccess.Write, FileShare.None);
//Stream destinationPdfStream = new FileStream("C:\\Users\\Athe\\source\\repos\\Reader\\Reader\\Data\\Ori.pdf", FileMode.Create, FileAccess.Write, FileShare.None);
//// Create new document (IText)
//Document outdoc = new Document(PageSize.A4);
//// Seek to Stream start and create Reader for input PDF
//m.Seek(0, SeekOrigin.Begin);
//PdfReader inputPdfReader = new PdfReader(sourcePdfStream);
//// Seek to Stream start and create Reader for destination PDF
//m.Seek(0, SeekOrigin.Begin);
//PdfReader destinationPdfReader = new PdfReader(destinationPdfStream);
//// Create a PdfWriter from for new a pdf destination stream
//// You should write into a new stream here!
//Stream processedPdf = new MemoryStream();
//PdfWriter pdfw = PdfWriter.GetInstance(outdoc, processedPdf);
//// do not close stream if we've read everything
//pdfw.CloseStream = false;
//// Open document
//outdoc.Open();
//// get number of pages
//int numPagesIn = inputPdfReader.NumberOfPages;
//int numPagesOut = destinationPdfReader.NumberOfPages;
//int max = numPagesIn;
//// Process max number of pages
//if (max < numPagesOut)
//{
// throw new Exception("Impossible - different number of pages");
//}
//int i = 0;
//// Process Pdf pages
//while (i < max)
//{
// // Import pages from corresponding reader
// PdfImportedPage pageIn = writer.inputPdfReader(reader, i);
// PdfImportedPage pageOut = writer.destinationPdfReader(reader, i);
// // Get named destinations (annotations
// List<Annotat ions> toBeAdded = ParseInAndOutAndGetAnnotations(pageIn, pageOut);
// // add your annotations
// foreach (Annotation anno in toBeAdded) pageOut.Add(anno);
// // Add processed page to output PDFWriter
// outdoc.Add(pageOut);
//}
//// PDF creation finished
//outdoc.Close();
#endregion
#region [Test Copy Annot 2]
//string oldFile = Server.MapPath("~/Data2/Extender.pdf");
//string oldFile2 = Server.MapPath("~/Data2/Ori.pdf");
//string newFile = Server.MapPath("~/Data2/Merge.pdf");
//// open the reader
//PdfReader reader = new PdfReader(oldFile);
//Rectangle size = reader.GetPageSizeWithRotation(1);
//Document document = new Document(size);
//PdfReader reader2 = new PdfReader(oldFile2);
//Rectangle size2 = reader2.GetPageSizeWithRotation(1);
//Document document2 = new Document(size2);
//// open the writer
//// remember to set the page size before opening document
//// otherwise the page is already set.
///* chapter02/HelloWorldMetadata.java */
//document.Open();
//// the pdf content
//// cb does not work with stamper
//// create the new pagez and add it to the pdf
//// this segment of code is meant for writer
//FileStream fs = new FileStream(newFile, FileMode.Create, FileAccess.ReadWrite);
//PdfStamper writer = new PdfStamper(reader, fs, reader.PdfVersion, false);
//for (int pg = 1; pg <= reader.NumberOfPages; pg++)
//{
// // taken from http://itextsharp.10939.n7.nabble.com/How-to-edit-annotations-td3352.html
// PdfDictionary pagedic = reader.GetPageN(pg);
// PdfArray annotarray = (PdfArray)PdfReader.GetPdfObject(pagedic.Get(PdfName.ANNOTS));
// if (annotarray == null || annotarray.Size == 0)
// continue;
// foreach (PdfIndirectReference annot in annotarray.ArrayList)
// {
// PdfDictionary annotationDic = (PdfDictionary)PdfReader.GetPdfObject(annot);
// PdfName subType = (PdfName)annotationDic.Get(PdfName.SUBTYPE);
// if (subType.Equals(PdfName.TEXT) || subType.Equals(PdfName.FREETEXT))
// {
// annotationDic.Put(PdfName.CONTENTS, new PdfString("These are changed contents", PdfObject.TEXT_UNICODE));
// }
// PdfString contents = annotationDic.GetAsString(PdfName.CONTENTS);
// if (contents != null)
// {
// String value = contents.ToString();
// annotationDic.Put(PdfName.CONTENTS, new PdfString(value));
// annotationDic.Remove(PdfName.AP);
// List<PdfName> tobeDel = new List<PdfName>();
// foreach (PdfName key in annotationDic.Keys)
// {
// if (key.CompareTo(PdfName.AP) == 0 ||
// key.CompareTo(PdfName.RC) == 0 ||
// annotationDic.Get(key).IsDictionary())
// {
// tobeDel.Add(key);
// }
// }
// foreach (PdfName key in tobeDel)
// {
// annotationDic.Remove(key);
// }
// }
// writer.MarkUsed(annotationDic);
// }
// if ((pg + 1) < reader.NumberOfPages)
// {
// document.NewPage();
// }
//}
////tesstart
//PdfStamper writer2 = new PdfStamper(reader2, fs, reader2.PdfVersion, false);
//document2.Open();
//for (int pg = 1; pg <= reader2.NumberOfPages; pg++)
//{
// PdfDictionary pagedic = reader2.GetPageN(pg);
// PdfArray annotarray = (PdfArray)PdfReader.GetPdfObject(pagedic.Get(PdfName.ANNOTS));
// if (annotarray == null || annotarray.Size == 0)
// continue;
// foreach (PdfIndirectReference annot in annotarray.ArrayList)
// {
// PdfDictionary annotationDic = (PdfDictionary)PdfReader.GetPdfObject(annot);
// PdfName subType = (PdfName)annotationDic.Get(PdfName.SUBTYPE);
// if (subType.Equals(PdfName.TEXT) || subType.Equals(PdfName.FREETEXT))
// {
// annotationDic.Put(PdfName.CONTENTS, new PdfString("These are changed contents", PdfObject.TEXT_UNICODE));
// }
// PdfString contents = annotationDic.GetAsString(PdfName.CONTENTS);
// if (contents != null)
// {
// String value = contents.ToString();
// annotationDic.Put(PdfName.CONTENTS, new PdfString(value));
// annotationDic.Remove(PdfName.AP);
// List<PdfName> tobeDel = new List<PdfName>();
// foreach (PdfName key in annotationDic.Keys)
// {
// if (key.CompareTo(PdfName.AP) == 0 ||
// key.CompareTo(PdfName.RC) == 0 ||
// annotationDic.Get(key).IsDictionary())
// {
// tobeDel.Add(key);
// }
// }
// foreach (PdfName key in tobeDel)
// {
// annotationDic.Remove(key);
// }
// }
// writer2.MarkUsed(annotationDic);
// }
// if ((pg + 1) < reader2.NumberOfPages)
// {
// document2.NewPage();
// }
//}
////tesend
//// close the streams and voilá the file should be changed :)
//writer.Close();
//reader.Close();
#endregion
ViewBag.Title = "Home Page";
return(View());
}
/// <summary>
/// Checks if an OCG dictionary is on the list for removal. </summary>
/// <param name="ocg"> a dictionary </param>
/// <param name="names"> the removal list
/// @return true if the dictionary should be removed </param>
private bool IsToBeRemoved(PdfDictionary ocg, ICollection<string> names) {
if (ocg == null) {
return false;
}
PdfString n = ocg.GetAsString(PdfName.NAME);
if (n == null) {
return false;
}
return names.Contains(n.ToString());
}
