diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/Androlib.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/Androlib.java
index 151f9786..b646a2f6 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/Androlib.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/Androlib.java
@@ -32,6 +32,10 @@ import brut.androlib.src.SmaliDecoder;
 import brut.common.BrutException;
 import brut.directory.*;
 import brut.util.*;
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.FilenameUtils;
+import org.jf.dexlib2.iface.DexFile;
+
 import java.io.*;
 import java.util.*;
 import java.util.logging.Logger;
@@ -41,25 +45,21 @@ import java.util.zip.ZipEntry;
 import java.util.zip.ZipFile;
 import java.util.zip.ZipOutputStream;
 
-import org.apache.commons.io.FileUtils;
-import org.apache.commons.io.FilenameUtils;
-
 public class Androlib {
     private final AndrolibResources mAndRes = new AndrolibResources();
     protected final ResUnknownFiles mResUnknownFiles = new ResUnknownFiles();
     public ApkOptions apkOptions;
     private int mMinSdkVersion = 0;
 
+    public Androlib() {
+        this(new ApkOptions());
+    }
+
     public Androlib(ApkOptions apkOptions) {
         this.apkOptions = apkOptions;
         mAndRes.apkOptions = apkOptions;
     }
 
-    public Androlib() {
-        this.apkOptions = new ApkOptions();
-        mAndRes.apkOptions = this.apkOptions;
-    }
-
     public ResTable getResTable(ExtFile apkFile)
             throws AndrolibException {
         return mAndRes.getResTable(apkFile, true);
@@ -70,6 +70,10 @@ public class Androlib {
         return mAndRes.getResTable(apkFile, loadMainPkg);
     }
 
+    public int getMinSdkVersion() {
+        return mMinSdkVersion;
+    }
+
     public void decodeSourcesRaw(ExtFile apkFile, File outDir, String filename)
             throws AndrolibException {
         try {
@@ -92,7 +96,11 @@ public class Androlib {
             OS.rmdir(smaliDir);
             smaliDir.mkdirs();
             LOGGER.info("Baksmaling " + filename + "...");
-            SmaliDecoder.decode(apkFile, smaliDir, filename, bakDeb, apiLevel);
+            DexFile dexFile = SmaliDecoder.decode(apkFile, smaliDir, filename, bakDeb, apiLevel);
+            int minSdkVersion = dexFile.getOpcodes().api;
+            if (mMinSdkVersion == 0 || mMinSdkVersion > minSdkVersion) {
+                mMinSdkVersion = minSdkVersion;
+            }
         } catch (BrutException ex) {
             throw new AndrolibException(ex);
         }
@@ -809,5 +817,5 @@ public class Androlib {
             "lib", "libs", "assets", "META-INF", "kotlin" };
     private final static Pattern NO_COMPRESS_PATTERN = Pattern.compile("(" +
             "jpg|jpeg|png|gif|wav|mp2|mp3|ogg|aac|mpg|mpeg|mid|midi|smf|jet|rtttl|imy|xmf|mp4|" +
-            "m4a|m4v|3gp|3gpp|3g2|3gpp2|amr|awb|wma|wmv|webm|mkv)$");
+            "m4a|m4v|3gp|3gpp|3g2|3gpp2|amr|awb|wma|wmv|webm|webp|mkv)$");
 }
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/ApkDecoder.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/ApkDecoder.java
index 9accf1bb..826293a6 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/ApkDecoder.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/ApkDecoder.java
@@ -332,6 +332,8 @@ public class ApkDecoder {
             putVersionInfo(meta);
             putSharedLibraryInfo(meta);
             putSparseResourcesInfo(meta);
+        } else {
+            putMinSdkInfo(meta);
         }
         putUnknownInfo(meta);
         putFileCompressionInfo(meta);
@@ -386,6 +388,15 @@ public class ApkDecoder {
         }
     }
 
+    private void putMinSdkInfo(MetaInfo meta) {
+        int minSdkVersion = mAndrolib.getMinSdkVersion();
+        if (minSdkVersion > 0) {
+            Map<String, String> sdkInfo = new LinkedHashMap<>();
+            sdkInfo.put("minSdkVersion", Integer.toString(minSdkVersion));
+            meta.sdkInfo = sdkInfo;
+        }
+    }
+
     private void putPackageInfo(MetaInfo meta) throws AndrolibException {
         String renamed = mResTable.getPackageRenamed();
         String original = mResTable.getPackageOriginal();
diff --git a/brut.apktool/apktool-lib/src/main/java/brut/androlib/src/SmaliDecoder.java b/brut.apktool/apktool-lib/src/main/java/brut/androlib/src/SmaliDecoder.java
index 46bbcd7f..226ae3da 100644
--- a/brut.apktool/apktool-lib/src/main/java/brut/androlib/src/SmaliDecoder.java
+++ b/brut.apktool/apktool-lib/src/main/java/brut/androlib/src/SmaliDecoder.java
@@ -24,6 +24,7 @@ import org.jf.dexlib2.Opcodes;
 import org.jf.dexlib2.dexbacked.DexBackedDexFile;
 import org.jf.dexlib2.dexbacked.DexBackedOdexFile;
 import org.jf.dexlib2.analysis.InlineMethodResolver;
+import org.jf.dexlib2.iface.DexFile;
 import org.jf.dexlib2.iface.MultiDexContainer;
 
 import java.io.File;
@@ -31,9 +32,9 @@ import java.io.IOException;
 
 public class SmaliDecoder {
 
-    public static void decode(File apkFile, File outDir, String dexName, boolean bakDeb, int apiLevel)
+    public static DexFile decode(File apkFile, File outDir, String dexName, boolean bakDeb, int apiLevel)
             throws AndrolibException {
-        new SmaliDecoder(apkFile, outDir, dexName, bakDeb, apiLevel).decode();
+        return new SmaliDecoder(apkFile, outDir, dexName, bakDeb, apiLevel).decode();
     }
 
     private SmaliDecoder(File apkFile, File outDir, String dexName, boolean bakDeb, int apiLevel) {
@@ -44,7 +45,7 @@ public class SmaliDecoder {
         mApiLevel = apiLevel;
     }
 
-    private void decode() throws AndrolibException {
+    private DexFile decode() throws AndrolibException {
         try {
             final BaksmaliOptions options = new BaksmaliOptions();
 
@@ -67,7 +68,8 @@ public class SmaliDecoder {
             }
 
             // create the container
-            MultiDexContainer<? extends DexBackedDexFile> container = DexFileFactory.loadDexContainer(mApkFile, mApiLevel > 0 ? Opcodes.forApi(mApiLevel) : null);
+            MultiDexContainer<? extends DexBackedDexFile> container =
+                    DexFileFactory.loadDexContainer(mApkFile, mApiLevel > 0 ? Opcodes.forApi(mApiLevel) : null);
             MultiDexContainer.DexEntry<? extends DexBackedDexFile> dexEntry;
             DexBackedDexFile dexFile;
 
@@ -96,6 +98,8 @@ public class SmaliDecoder {
             }
 
             Baksmali.disassembleDexFile(dexFile, mOutDir, jobs, options);
+
+            return dexFile;
         } catch (IOException ex) {
             throw new AndrolibException(ex);
         }