diff --git a/src/UglyToad.PdfPig/Util/DefaultWordExtractor.cs b/src/UglyToad.PdfPig/Util/DefaultWordExtractor.cs
index fcc316b8..be663e3b 100644
--- a/src/UglyToad.PdfPig/Util/DefaultWordExtractor.cs
+++ b/src/UglyToad.PdfPig/Util/DefaultWordExtractor.cs
@@ -21,6 +21,8 @@
 
             var lettersSoFar = new List<Letter>(10);
 
+            var gapCountsSoFarByFontSize = new Dictionary<double, Dictionary<double, int>>();
+
             var y = default(double?);
             var lastX = default(double?);
             var lastLetter = default(Letter);
@@ -68,15 +70,48 @@
                     continue;
                 }
 
+                var letterHeight = Math.Max(lastLetter.GlyphRectangle.Height, letter.GlyphRectangle.Height);
+
                 var gap = letter.Location.X - (lastLetter.Location.X + lastLetter.Width);
                 var nextToLeft = letter.Location.X < lastX.Value - 1;
-                var nextBigSpace = gap > Math.Max(lastLetter.GlyphRectangle.Height, letter.GlyphRectangle.Height) * 0.39;
+                var nextBigSpace = gap > letterHeight * 0.39;
                 var nextIsWhiteSpace = string.IsNullOrWhiteSpace(letter.Value);
                 var nextFontDiffers = !string.Equals(letter.FontName, lastLetter.FontName, StringComparison.OrdinalIgnoreCase) && gap > letter.Width * 0.1;
                 var nextFontSizeDiffers = Math.Abs(letter.FontSize - lastLetter.FontSize) > 0.1;
                 var nextTextOrientationDiffers = letter.TextOrientation != lastLetter.TextOrientation;
 
-                if (nextToLeft || nextBigSpace || nextIsWhiteSpace || nextFontDiffers || nextFontSizeDiffers || nextTextOrientationDiffers)
+                var suspectGap = false;
+
+                if (!nextFontSizeDiffers && letter.FontSize > 0 && gap >= 0)
+                {
+                    var fontSize = Math.Round(letter.FontSize);
+                    if (!gapCountsSoFarByFontSize.TryGetValue(fontSize, out var gapCounts))
+                    {
+                        gapCounts = new Dictionary<double, int>();
+                        gapCountsSoFarByFontSize[fontSize] = gapCounts;
+                    }
+
+                    var gapRounded = Math.Round(gap, 2);
+                    if (!gapCounts.ContainsKey(gapRounded))
+                    {
+                        gapCounts[gapRounded] = 0;
+                    }
+
+                    gapCounts[gapRounded]++;
+
+                    // More than one type of gap.
+                    if (gapCounts.Count > 1 && gap > letterHeight * 0.16)
+                    {
+                        var mostCommonGap = gapCounts.OrderByDescending(x => x.Value).First();
+
+                        if (gap > (mostCommonGap.Key * 5) && mostCommonGap.Value > 1)
+                        {
+                            suspectGap = true;
+                        }
+                    }
+                }
+
+                if (nextToLeft || nextBigSpace || nextIsWhiteSpace || nextFontDiffers || nextFontSizeDiffers || nextTextOrientationDiffers || suspectGap)
                 {
                     if (lettersSoFar.Count > 0)
                     {