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);
}
internal static int FindReverse(this IEditablePdfDocument document, byte[] lookFor, int start) => document.FindReverse(lookFor.Length, w => w.ByteEquals(lookFor), start);
internal static int FindReverse(this IEditablePdfDocument document, byte[] lookFor) => document.FindReverse(lookFor, document.Length - 1);
internal static int FindReverse(this IEditablePdfDocument document, int windowSize, Func <byte[], bool> matches) => document.FindReverse(windowSize, matches, document.Length - 1);