diff --git a/model/config.go b/model/config.go
index 46e398d..5f1cf1b 100644
--- a/model/config.go
+++ b/model/config.go
@@ -692,7 +692,7 @@ func (m *DBModel) initConfig() (err error) {
 		{Category: ConfigCategoryFooter, Name: ConfigFooterFeedback, Label: "意见反馈", Value: "/article/feedback", Placeholder: "请输入意见反馈的链接地址，留空表示不显示", InputType: InputTypeText, Sort: 28, Options: ""},
 
 		// 转换配置项
-		{Category: ConfigCategoryConverter, Name: ConfigConverterMaxPreview, Label: "最大预览页数", Value: "0", Placeholder: "文档允许的最大预览页数，0表示不限制", InputType: InputTypeNumber, Sort: 15, Options: ""},
+		{Category: ConfigCategoryConverter, Name: ConfigConverterMaxPreview, Label: "最大预览页数", Value: "12", Placeholder: "文档允许的最大预览页数，0表示不限制", InputType: InputTypeNumber, Sort: 15, Options: ""},
 		{Category: ConfigCategoryConverter, Name: ConfigConverterTimeout, Label: "转换超时(分钟)", Value: "30", Placeholder: "文档转换超时时间，默认为30分钟", InputType: InputTypeNumber, Sort: 16, Options: ""},
 		{Category: ConfigCategoryConverter, Name: ConfigConverterEnableGZIP, Label: "是否启用GZIP压缩", Value: "true", Placeholder: "是否对文档SVG预览文件启用GZIP压缩，启用后转换效率会【稍微】下降，但相对直接的SVG文件减少75%的存储空间", InputType: InputTypeSwitch, Sort: 17, Options: ""},
 		{Category: ConfigCategoryConverter, Name: ConfigConverterEnableSVGO, Label: "是否启用SVGO", Value: "false", Placeholder: "是否对文档SVG预览文件启用SVGO压缩，启用后转换效率会【明显】下降，但相对直接的SVG文件减少50%左右的存储空间", InputType: InputTypeSwitch, Sort: 18, Options: ""},