diff --git a/src/com/google/typography/font/compression/GlyfEncoder.java b/src/com/google/typography/font/compression/GlyfEncoder.java
index 37125f0..1144ee1 100644
--- a/src/com/google/typography/font/compression/GlyfEncoder.java
+++ b/src/com/google/typography/font/compression/GlyfEncoder.java
@@ -447,9 +447,9 @@ public class GlyfEncoder {
         writeLong(newStream, compositeStream.size());
         writeLong(newStream, bboxBitmap.length + bboxStream.size());
         writeLong(newStream, codeStream.size());
-        System.out.printf("stream sizes = %d %d %d %d %d %d %d\n",
-            nContourStream.size(), nPointsStream.size(), flagBytesStream.size(), glyfStream.size(),
-            compositeStream.size(), bboxStream.size(), codeStream.size());
+//        System.out.printf("stream sizes = %d %d %d %d %d %d %d\n",
+//            nContourStream.size(), nPointsStream.size(), flagBytesStream.size(), glyfStream.size(),
+//            compositeStream.size(), bboxStream.size(), codeStream.size());
         nContourStream.writeTo(newStream);
         nPointsStream.writeTo(newStream);
         flagBytesStream.writeTo(newStream);
diff --git a/src/com/google/typography/font/compression/Woff2Writer.java b/src/com/google/typography/font/compression/Woff2Writer.java
index c13647f..167b5f5 100644
--- a/src/com/google/typography/font/compression/Woff2Writer.java
+++ b/src/com/google/typography/font/compression/Woff2Writer.java
@@ -97,11 +97,11 @@ public class Woff2Writer {
     FontHeaderTable head = font.getTable(Tag.head);
     index += writeWoff2Header(writableFontData, entries, font.sfntVersion(), size,
         head.fontRevision());
-    System.out.printf("Wrote header, index = %d\n", index);
+//    System.out.printf("Wrote header, index = %d\n", index);
     index += writeDirectory(writableFontData, index, entries);
-    System.out.printf("Wrote directory, index = %d\n", index);
+//    System.out.printf("Wrote directory, index = %d\n", index);
     index += writeTables(writableFontData, index, entries);
-    System.out.printf("Wrote tables, index = %d\n", index);
+//    System.out.printf("Wrote tables, index = %d\n", index);
     return writableFontData;
   }
 
@@ -327,7 +327,7 @@ public class Woff2Writer {
           flag_byte |= (flags & 3) << 6;
         }
         if (writableFontData != null) {
-          System.out.printf("%d: tag = %08x, flag = %02x\n", offset, tag, flag_byte);
+//          System.out.printf("%d: tag = %08x, flag = %02x\n", offset, tag, flag_byte);
           writableFontData.writeByte(offset, (byte)flag_byte);
         }
         offset += 1;