diff --git a/modules/book/src/main/java/me/ag2s/epublib/domain/MediaTypes.java b/modules/book/src/main/java/me/ag2s/epublib/domain/MediaTypes.java
index 227409590..cebced903 100644
--- a/modules/book/src/main/java/me/ag2s/epublib/domain/MediaTypes.java
+++ b/modules/book/src/main/java/me/ag2s/epublib/domain/MediaTypes.java
@@ -32,6 +32,8 @@ public class MediaTypes {
 
     public static final MediaType SVG = new MediaType("image/svg+xml", ".svg");
 
+    public static final MediaType WEBP = new MediaType("image/webp", ".webp");
+
     // fonts
     public static final MediaType TTF = new MediaType(
             "application/x-truetype-font", ".ttf");
@@ -56,7 +58,7 @@ public class MediaTypes {
     public static final MediaType UNKNOWN = new MediaType("application/octet-stream", "");
 
     public static final MediaType[] mediaTypes = new MediaType[]{
-            XHTML, EPUB, JPG, PNG, GIF, CSS, SVG, TTF, NCX, XPGT, OPENTYPE, WOFF,
+            XHTML, EPUB, JPG, PNG, GIF, WEBP, CSS, SVG, TTF, NCX, XPGT, OPENTYPE, WOFF,
             SMIL, PLS, JAVASCRIPT, MP3, MP4, OGG, UNKNOWN
     };
 
@@ -69,7 +71,11 @@ public class MediaTypes {
     }
 
     public static boolean isBitmapImage(MediaType mediaType) {
-        return mediaType == JPG || mediaType == PNG || mediaType == GIF;
+        return mediaType == JPG || mediaType == PNG || mediaType == GIF || mediaType == WEBP;
+    }
+
+    public static boolean isImage(MediaType mediaType) {
+        return mediaType == JPG || mediaType == PNG || mediaType == GIF || mediaType == SVG || mediaType == WEBP;
     }
 
     /**
diff --git a/modules/book/src/main/java/me/ag2s/epublib/epub/PackageDocumentReader.java b/modules/book/src/main/java/me/ag2s/epublib/epub/PackageDocumentReader.java
index b798be23c..a21e882dc 100644
--- a/modules/book/src/main/java/me/ag2s/epublib/epub/PackageDocumentReader.java
+++ b/modules/book/src/main/java/me/ag2s/epublib/epub/PackageDocumentReader.java
@@ -107,7 +107,7 @@ public class PackageDocumentReader extends PackageDocumentBase {
         //如果有图片资源未定义在 originItemElements ，则加入该图片信息得到 fixedElements 中
         for (Resource resource : resources.getAll()) {
             MediaType currentMediaType = resource.getMediaType();
-            if (currentMediaType == MediaTypes.JPG || currentMediaType == MediaTypes.PNG) {
+            if (MediaTypes.isImage(currentMediaType)) {
                 String imageHref = resource.getHref();
                 //确保该图片信息 resource 在原 originItemHrefSet 集合中没有出现过
                 if (!originItemHrefSet.contains(imageHref)) {