Fixed a few info level messages

Author: ff-gerard

src/Synercoding.FileFormats.Pdf/LowLevel/PdfName.cs

@@ -49,7 +49,6 @@ public class PdfName
         { "XObject", new PdfName("XObject") },
     };
 
-    private readonly string _raw;
     private readonly string _encoded;
 
     private PdfName(string raw)
@@ -58,7 +57,6 @@ private PdfName(string raw)
             throw new ArgumentOutOfRangeException(nameof(raw), "The name is too long. Max length of 127 is allowed.");
         if (raw.Any(c => c > 0xff))
             throw new ArgumentOutOfRangeException(nameof(raw), "The name contains non-ascii characters, and is thus not allowed.");
-        _raw = raw;
         _encoded = _encode(raw);
     }
 

src/Synercoding.FileFormats.Pdf/LowLevel/XRef/Entry.cs

@@ -33,12 +33,7 @@ public void FillSpan(Span<byte> bytes)
         bytes[19] = 0x0A;
     }
 
-    public int ByteSize()
-    {
-        return 20;
-    }
-
-    private void _fillSpanLeadingZero(Span<byte> span, uint data)
+    private static void _fillSpanLeadingZero(Span<byte> span, uint data)
     {
         uint val = data;
         for (int i = span.Length - 1; i >= 0; i--)
@@ -48,7 +43,7 @@ private void _fillSpanLeadingZero(Span<byte> span, uint data)
         }
     }
 
-    private void _fillSpanLeadingZero(Span<byte> span, ushort data)
+    private static void _fillSpanLeadingZero(Span<byte> span, ushort data)
     {
         int val = data;
         for (int i = span.Length - 1; i >= 0; i--)

src/Synercoding.FileFormats.Pdf/LowLevel/XRef/Section.cs

@@ -13,7 +13,7 @@ public Section(int firstObjectNumber, params Entry[] entries)
 
     public int FirstObjectNumber { get; }
     public int ObjectCount => Entries.Length;
-    public Entry[] Entries { get; } = new Entry[0];
+    public Entry[] Entries { get; } = Array.Empty<Entry>();
 
     public void FillSpan(Span<byte> bytes)
     {

src/Synercoding.FileFormats.Pdf/PdfWriter.cs

@@ -276,7 +276,7 @@ private void _writePdfEnding()
         _writeTrailer(_objectStream.InnerStream, xRefPosition, xRefTable.Section.ObjectCount, _catalog.Reference, DocumentInformation.Reference);
     }
 
-    private void _writeTrailer(PdfStream stream, uint startXRef, int size, PdfReference root, PdfReference documentInfo)
+    private static void _writeTrailer(PdfStream stream, uint startXRef, int size, PdfReference root, PdfReference documentInfo)
     {
         stream
             .Write("trailer")