diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFont2Tag.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFont2Tag.java
index d9e332739..7cffc99f1 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFont2Tag.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFont2Tag.java
@@ -12,7 +12,8 @@
  * Lesser General Public License for more details.
  * 
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library.
 */
+ * License along with this library.
+ */
 package com.jpexs.decompiler.flash.tags;
 
 import com.jpexs.decompiler.flash.SWF;
@@ -410,6 +411,8 @@ public class DefineFont2Tag extends FontTag {
         if (!exists) {
             numGlyphs++;
         }
+
+        setModified(true);
     }
 
     @Override
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFont3Tag.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFont3Tag.java
index 0e4885187..2dea51ad5 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFont3Tag.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFont3Tag.java
@@ -12,7 +12,8 @@
  * Lesser General Public License for more details.
  * 
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library.
 */
+ * License along with this library.
+ */
 package com.jpexs.decompiler.flash.tags;
 
 import com.jpexs.decompiler.flash.SWF;
@@ -414,6 +415,8 @@ public class DefineFont3Tag extends FontTag {
         if (!exists) {
             numGlyphs++;
         }
+
+        setModified(true);
     }
 
     @Override
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFontTag.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFontTag.java
index 8de95693f..e02ce4db2 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFontTag.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/DefineFontTag.java
@@ -12,7 +12,8 @@
  * Lesser General Public License for more details.
  * 
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library.
 */
+ * License along with this library.
+ */
 package com.jpexs.decompiler.flash.tags;
 
 import com.jpexs.decompiler.flash.SWFInputStream;
@@ -297,6 +298,7 @@ public class DefineFontTag extends FontTag {
             glyphShapeTable.set(pos, shp);
         }
 
+        setModified(true);
     }
 
     @Override
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/gfx/DefineCompactedFont.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/gfx/DefineCompactedFont.java
index 36d65b0ca..c335a7b20 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/gfx/DefineCompactedFont.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/tags/gfx/DefineCompactedFont.java
@@ -12,7 +12,8 @@
  * Lesser General Public License for more details.
  * 
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library.
 */
+ * License along with this library.
+ */
 package com.jpexs.decompiler.flash.tags.gfx;
 
 import com.jpexs.decompiler.flash.SWF;
@@ -179,6 +180,8 @@ public final class DefineCompactedFont extends FontTag implements DrawableTag {
             font.glyphs.set(pos, new GlyphType(shp.shapeRecords));
             shapeCache.set(pos, font.glyphs.get(pos).toSHAPE());
         }
+
+        setModified(true);
         SWF.clearImageCache();
     }