public PdfCrossReferenceTable ReadCrossReferenceTable(PdfTrailer trailer)
{
var pos = trailer.CrossReferenceTableOffset;
var length = trailer.Index - pos;
var crossReferenceData = _document.Encoding.GetString(_document.Read(pos, length - 1)).Split(new[] { PdfKeywords.LineBreak }, StringSplitOptions.RemoveEmptyEntries);
var crossReferenceTableSummary = crossReferenceData[1].Split(new[] { PdfKeywords.Space }, StringSplitOptions.RemoveEmptyEntries);
var firstObjectNumber = int.Parse(crossReferenceTableSummary[0]);
var objectCount = int.Parse(crossReferenceTableSummary[1]);
var result = new PdfCrossReferenceTable
{
ObjectOffsets = new Dictionary <int, int>(),
Offset = pos,
Length = length,
FirstObjectNumber = firstObjectNumber,
ObjectCount = objectCount,
Document = _document
};
for (var i = 2; i < crossReferenceData.Length; i++)
{
result.ObjectOffsets.Add(firstObjectNumber + i - 2, int.Parse(crossReferenceData[i].Split(new[] { PdfKeywords.Space }, StringSplitOptions.RemoveEmptyEntries)[0]));
}
return(result);
}
public PdfTrailer ReadTrailer()
{
var eofPos = _document.FindReverse(_document.Keywords.EOFLine);
var startxrefPos = _document.FindReverse(_document.Keywords.StartXRefLine, eofPos);
var startxrefData = _document.Encoding.GetString(_document.Read(startxrefPos + 11, eofPos - (startxrefPos + 11)));
var trailerPos = _document.FindReverse(_document.Keywords.TrailerLine, startxrefPos) + 1;
var result = new PdfTrailer
{
Offset = trailerPos,
Length = eofPos - trailerPos,
CrossReferenceTableOffset = int.Parse(startxrefData),
Document = _document
};
result.TrailerDictionary = _ReadDictionary(trailerPos + 8, result);
return(result);
}
