diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7dc344da2..5df246f58 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ All notable changes to this project will be documented in this file.
 - [#2116] DefineEditText display - correct getting fonts
 - [#2116] DefineEditText display - apostroph decoding
 - [#2116] Apply colortransform after filters
+- [#2116] Limit maximum number of box blur pixels
 
 
 ## [20.0.0] - 2023-11-05
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java
index bff711194..338b2c8d1 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/configuration/Configuration.java
@@ -976,6 +976,10 @@ public final class Configuration {
     @ConfigurationName("formatting.tab.size")
     @ConfigurationCategory("format")
     public static ConfigurationItem<Integer> tabSize = null;
+    
+    @ConfigurationDefaultInt(1000000)
+    @ConfigurationCategory("limit")
+    public static ConfigurationItem<Integer> boxBlurPixelsLimit = null;
         
     private enum OSId {
         WINDOWS, OSX, UNIX
diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/types/filters/Filtering.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/types/filters/Filtering.java
index bb7b60c22..0d57516d6 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/types/filters/Filtering.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/types/filters/Filtering.java
@@ -16,6 +16,7 @@
  */
 package com.jpexs.decompiler.flash.types.filters;
 
+import com.jpexs.decompiler.flash.configuration.Configuration;
 import com.jpexs.decompiler.flash.types.RGBA;
 import com.jpexs.helpers.SerializableImage;
 import java.awt.AlphaComposite;
@@ -66,7 +67,22 @@ public class Filtering {
         int radiusXHalf = radiusX / 2;
         int radiusYHalf = radiusY / 2;
         double divisor = radiusX * radiusY;
-                
+        
+        
+        if ((long) w * (long) h > Configuration.boxBlurPixelsLimit.get()) {
+            return;
+        }
+        
+        while (((long) radiusY * (long) radiusX * (long) w *  (long) h) > Configuration.boxBlurPixelsLimit.get()) {
+            // decrease radius
+            if (radiusY > 1) {
+                radiusY--;
+            }
+            if (radiusX > 1) {
+                radiusX--;
+            }            
+        }
+
         for (int y = 0; y < h; y++) {
             for (int x = 0; x < w; x++) {
                 double sumR = 0;
@@ -96,7 +112,7 @@ public class Filtering {
                         sumA += a;
                         sumR += r;
                         sumG += g;
-                        sumB += b;
+                        sumB += b;                                              
                     }
                 }
                 int da = (int) Math.floor(sumA / divisor);
@@ -115,7 +131,7 @@ public class Filtering {
                     db = 255;
                 }
 
-                newColors[index] = RGBA.toInt(dr, dg, db, da);
+                newColors[index] = RGBA.toInt(dr, dg, db, da);                
             }
         }
         for (int y = 0; y < h; y++) {
diff --git a/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties b/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties
index f648f75bc..34f70b4a3 100644
--- a/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties
+++ b/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog.properties
@@ -747,4 +747,7 @@ config.description.flaExportUseMappedFontLayout = Use assigned source font advan
 #after 20.0.0
 
 config.name.formatting.tab.size = Tab size
-config.description.formatting.tab.size = Number of spaces per tab
\ No newline at end of file
+config.description.formatting.tab.size = Number of spaces per tab
+
+config.name.boxBlurPixelsLimit = Box blur filter pixels limit
+config.description.boxBlurPixelsLimit = Maximum number of pixels to calculate boxblur filter. If the number of pixels is greater, then blurring is skipped.
diff --git a/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog_cs.properties b/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog_cs.properties
index 1893d6532..3cf5ec1e1 100644
--- a/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog_cs.properties
+++ b/src/com/jpexs/decompiler/flash/gui/locales/AdvancedSettingsDialog_cs.properties
@@ -737,4 +737,7 @@ config.description.flaExportUseMappedFontLayout = B\u011bhem FLA exportu pou\u01
 #after 20.0.0
 
 config.name.formatting.tab.size = Velikost tabel\u00e1toru
-config.description.formatting.tab.size = Po\u010det mezer v tabel\u00e1toru
\ No newline at end of file
+config.description.formatting.tab.size = Po\u010det mezer v tabel\u00e1toru
+
+config.name.boxBlurPixelsLimit = Limit pixel\u016f box blur filtru
+config.description.boxBlurPixelsLimit = Maxim\u00e1ln\u00ed po\u010det pixel\u016f pro v\u00fdpo\u010det boxblur filtru. Pokud je po\u010det pixel\u016f v\u011bt\u0161\u00ed, blur je p\u0159esko\u010den.