private static List <long> GetObjectNumbers(PdfRawStream stream) { var indexArray = (COSArray)stream.Dictionary.GetDictionaryObject(CosName.INDEX); // If Index doesn't exist, we will use the default values. if (indexArray == null) { indexArray = new COSArray(); indexArray.add(CosInt.Zero); indexArray.add(stream.Dictionary.GetDictionaryObject(CosName.SIZE)); } List <long> objNums = new List <long>(); // Populates objNums with all object numbers available for (int i = 0; i < indexArray.Count; i += 2) { var longId = ((CosInt)indexArray.get(i)).AsLong(); var size = ((CosInt)indexArray.get(i + 1)).AsInt(); for (int j = 0; j < size; j++) { objNums.Add(longId + j); } } return(objNums); }
public COSArray Parse(IRandomAccessRead reader, CosBaseParser baseParser, CosObjectPool pool) { ReadHelper.ReadExpectedChar(reader, '['); var po = new COSArray(); CosBase pbo; ReadHelper.SkipSpaces(reader); int i; while (((i = reader.Peek()) > 0) && ((char)i != ']')) { pbo = baseParser.Parse(reader, pool); if (pbo is CosObject) { // We have to check if the expected values are there or not PDFBOX-385 if (po.get(po.size() - 1) is CosInt) { var genNumber = (CosInt)po.remove(po.size() - 1); if (po.get(po.size() - 1) is CosInt) { var number = (CosInt)po.remove(po.size() - 1); CosObjectKey key = new CosObjectKey(number.AsLong(), genNumber.AsInt()); pbo = pool.Get(key); } else { // the object reference is somehow wrong pbo = null; } } else { pbo = null; } } if (pbo != null) { po.add(pbo); } else { //it could be a bad object in the array which is just skipped // LOG.warn("Corrupt object reference at offset " + seqSource.getPosition()); // This could also be an "endobj" or "endstream" which means we can assume that // the array has ended. string isThisTheEnd = ReadHelper.ReadString(reader); reader.Unread(OtherEncodings.StringAsLatin1Bytes(isThisTheEnd)); if (string.Equals(isThisTheEnd, "endobj") || string.Equals(isThisTheEnd, "endstream")) { return(po); } } ReadHelper.SkipSpaces(reader); } // read ']' reader.Read(); ReadHelper.SkipSpaces(reader); return(po); }
/** * Embeds an external file (generic - any type allowed) in the PDF. * * @param doc * PDDocument to attach the file to. * @param filename * name of the file that will become attachment name in the PDF * @param relationship * how the file relates to the content, e.g. "Alternative" * @param description * Human-readable description of the file content * @param subType * type of the data e.g. could be "text/xml" - mime like * @param data * the binary data of the file/attachment */ public void PDFAttachGenericFile(PDDocument doc, String filename, String relationship, String description, String subType, byte[] data) { PDComplexFileSpecification fs = new PDComplexFileSpecification(); fs.setFile(filename); COSDictionary dict = fs.getCOSDictionary(); dict.setName("AFRelationship", relationship); dict.setString("UF", filename); dict.setString("Desc", description); ByteArrayInputStream fakeFile = new ByteArrayInputStream(data); PDEmbeddedFile ef = new PDEmbeddedFile(doc, fakeFile); ef.setSubtype(subType); ef.setSize(data.Length); ef.setCreationDate(new GregorianCalendar()); ef.setModDate(GregorianCalendar.getInstance()); fs.setEmbeddedFile(ef); // In addition make sure the embedded file is set under /UF dict = fs.getCOSDictionary(); COSDictionary efDict = (COSDictionary)dict .getDictionaryObject(COSName.EF); COSBase lowerLevelFile = efDict.getItem(COSName.F); efDict.setItem(COSName.UF, lowerLevelFile); // now add the entry to the embedded file tree and set in the document. PDDocumentNameDictionary names = new PDDocumentNameDictionary( doc.getDocumentCatalog()); PDEmbeddedFilesNameTreeNode efTree = names.getEmbeddedFiles(); if (efTree == null) { efTree = new PDEmbeddedFilesNameTreeNode(); } //Map<String, COSObjectable> namesMap = new HashMap<String, COSObjectable>(); // Map<String, COSObjectable> oldNamesMap = efTree.getNames(); //if (oldNamesMap != null) { // for (String key : oldNamesMap.keySet()) { // namesMap.put(key, oldNamesMap.get(key)); // } //} //efTree.setNames(namesMap); //should be ported more exactly... efTree.setNames(Collections.singletonMap(filename, fs)); names.setEmbeddedFiles(efTree); doc.getDocumentCatalog().setNames(names); // AF entry (Array) in catalog with the FileSpec COSArray cosArray = (COSArray)doc.getDocumentCatalog() .getCOSDictionary().getItem("AF"); if (cosArray == null) { cosArray = new COSArray(); } cosArray.add(fs); COSDictionary dict2 = doc.getDocumentCatalog().getCOSDictionary(); COSArray array = new COSArray(); array.add(fs.getCOSDictionary()); // see below dict2.setItem("AF", array); doc.getDocumentCatalog().getCOSDictionary().setItem("AF", cosArray); }