diff --git a/README.md b/README.md
index 9fff573..ebce941 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ git clone https://github.com/sjh00/ComfyUI-LoadImageWithInfo.git
    - `filename`：保存的文件名（不含扩展名）
    - `format`：保存格式（original、avif、webp、jpg、png、tiff）
    - `original_format`：原始格式（当format设为original时使用）
-   - `quality`：保存质量（1-100，AVIF默认80，其他默认92，png/tiff格式不受影响）
+   - `quality`：保存质量（1-100，AVIF默认80，其他默认95，png/tiff格式不受影响）
    - `dpi`：图像DPI值
    - `exif`：EXIF元数据（JSON格式字符串）
 4. 节点将保存图像
@@ -120,13 +120,14 @@ SaveImageWithInfo:
 
 ### SaveImageWithInfo 节点
 
+- 若文件名重名，则自动增加数字以区分
 - 并非所有图像格式都支持EXIF数据，目前只有JPG格式支持保存EXIF数据
 - 如果选择的保存格式不支持EXIF，EXIF数据将被忽略
 - 如果指定的格式无法保存，将自动回退到PNG格式
 - quality参数对不同格式的影响：
   - JPG/JPEG：直接影响图像质量（1-100，值越高质量越好）
   - PNG/TIFF：不受影响
-  - WEBP/AVIF：影响图像质量（1-100，值越高质量越好，AVIF最高80；若设置100则WEBP/AVIF开启无损模式）
+  - WEBP/AVIF：影响图像质量（1-100，值越高质量越好，AVIF高于80肉眼无区别，所以已锁定AVIF质量上限为80；若设置100则WEBP/AVIF开启无损模式）
   - 其他格式：如果格式支持quality参数则使用，否则忽略
 
 ## 许可证
diff --git a/load_image_with_info.py b/load_image_with_info.py
index 2768801..2bfc180 100644
--- a/load_image_with_info.py
+++ b/load_image_with_info.py
@@ -136,7 +136,7 @@ class SaveImageWithInfo:
                 "filename": ("STRING", {"default": "image"}),
                 "format": (["original", "avif", "webp", "jpg", "png", "tiff"], {"default": "original"}),
                 "original_format": ("STRING", {"default": "png"}),
-                "quality": ("INT", {"default": 92, "min": 1, "max": 100, "step": 1, "display": "silder", 'tooltip': "Quality for JPEG/WebP/AVIF formats; Quality is relative to each format. \n* Example: AVIF 60 is same quality as WebP 90. \n* PNG compression is fixed at 4 and not affected by this. PNG compression times skyrocket above level 4 for zero benefits on filesize."}),
+                "quality": ("INT", {"default": 95, "min": 1, "max": 100, "step": 1, "display": "silder", 'tooltip': "Quality for JPEG/WebP/AVIF formats; Quality is relative to each format. \n* Example: AVIF 60 is same quality as WebP 90. \n* PNG compression is fixed at 4 and not affected by this. PNG compression times skyrocket above level 4 for zero benefits on filesize."}),
                 "dpi": ("INT", {"default": 96}),
                 "exif": ("STRING", {"default": "{}"}),
                 'image_preview': ('BOOLEAN', {'default': True, 'tooltip': "Turns the image preview on and off"}),
@@ -153,7 +153,7 @@ class SaveImageWithInfo:
     DESCRIPTION = "Saves the input image with to your ComfyUI output directory."
 
     type = 'output'
-    quality = 92
+    quality = 95
     quality_avif = 80
     # optimize_image only works for jpeg, png and TIFF, with like just 2% reduction in size; not used for PNG as it forces a level 9 compression.
     optimize_image = True
@@ -175,6 +175,15 @@ class SaveImageWithInfo:
         
         # 确保目录存在
         os.makedirs(output_dir, exist_ok=True)
+
+        # 如果文件已存在，更改文件名
+        if os.path.exists(full_path):
+            base, ext = os.path.splitext(full_filename)
+            counter = 1
+            while os.path.exists(full_path):
+                full_filename = f"{base}_{counter}{ext}"
+                full_path = os.path.join(output_dir, full_filename)
+                counter += 1
         
         # 处理EXIF数据
         try: