--- @pdf-lib/fontkit-1.1.1-original
+++ fontkit-patched.js
@@ -40711,9 +40711,8 @@
 
 	    var s = new restructure.EncodeStream();
 	    nextTick(function () {
-	      _this.encode(s);
-
-	      return s.end();
+      // PDF APP v1.7.1: forward asynchronous encoding failures to the caller.
+      try { _this.encode(s); s.end(); } catch (error) { s.emit('error', error); }
 	    });
 	    return s;
 	  };
@@ -40842,6 +40841,8 @@
 	      endPtsOfContours.push(pointCount - 1);
 	    }
 
+	    // PDF APP v1.7.1: flush the last run of repeated flags before coordinates.
+	    if (same > 0) flags.push(same);
 	    var bbox = path.bbox;
 	    var glyf = {
 	      numberOfContours: endPtsOfContours.length,
@@ -40940,7 +40941,9 @@
 	      buffer = this.glyphEncoder.encodeSimple(glyph.path, glyf.instructions);
 	    }
 
-	    this.glyf.push(buffer);
+	    // PDF APP v1.7.1: short loca offsets require even glyph boundaries.
+    if (buffer.length % 2) { var padded = new buffer_1(buffer.length + 1); padded.set(buffer); buffer = padded; }
+    this.glyf.push(buffer);
 	    this.loca.offsets.push(this.offset);
 	    this.hmtx.metrics.push({
 	      advance: glyph.advanceWidth,