diff --git a/server/src/main/java/cn/keking/model/FileAttribute.java b/server/src/main/java/cn/keking/model/FileAttribute.java
index 7cb4d9f1..036bef9a 100644
--- a/server/src/main/java/cn/keking/model/FileAttribute.java
+++ b/server/src/main/java/cn/keking/model/FileAttribute.java
@@ -14,7 +14,7 @@ public class FileAttribute {
     private String url;
     private String fileKey;
     private String officePreviewType = ConfigConstants.getOfficePreviewType();
-    private String previewType;
+    private String tifPreviewType;
 
     public FileAttribute() {
     }
@@ -34,13 +34,13 @@ public class FileAttribute {
         this.officePreviewType = officePreviewType;
     }
 
-    public FileAttribute(FileType type, String suffix, String name, String url, String officePreviewType, String previewType) {
+    public FileAttribute(FileType type, String suffix, String name, String url, String officePreviewType, String tifPreviewType) {
         this.type = type;
         this.suffix = suffix;
         this.name = name;
         this.url = url;
         this.officePreviewType = officePreviewType;
-        this.previewType = previewType;
+        this.tifPreviewType = tifPreviewType;
     }
 
     public String getFileKey() {
@@ -91,12 +91,12 @@ public class FileAttribute {
         this.url = url;
     }
 
-    public String getPreviewType() {
-        return previewType;
+    public String getTifPreviewType() {
+        return tifPreviewType;
     }
 
-    public void setPreviewType(String previewType) {
-        this.previewType = previewType;
+    public void setTifPreviewType(String previewType) {
+        this.tifPreviewType = previewType;
     }
 
 }
diff --git a/server/src/main/java/cn/keking/service/FileHandlerService.java b/server/src/main/java/cn/keking/service/FileHandlerService.java
index c9a94319..67ec1fc7 100644
--- a/server/src/main/java/cn/keking/service/FileHandlerService.java
+++ b/server/src/main/java/cn/keking/service/FileHandlerService.java
@@ -285,9 +285,9 @@ public class FileHandlerService {
                 attribute.setFileKey(fileKey);
             }
 
-            String previewType = req.getParameter("previewType");
-            if (StringUtils.hasText(previewType)) {
-                attribute.setPreviewType(previewType);
+            String tifPreviewType = req.getParameter("tifPreviewType");
+            if (StringUtils.hasText(tifPreviewType)) {
+                attribute.setTifPreviewType(tifPreviewType);
             }
         }
         return attribute;
diff --git a/server/src/main/java/cn/keking/service/impl/TiffFilePreviewImpl.java b/server/src/main/java/cn/keking/service/impl/TiffFilePreviewImpl.java
index 87adb10d..885fa50a 100644
--- a/server/src/main/java/cn/keking/service/impl/TiffFilePreviewImpl.java
+++ b/server/src/main/java/cn/keking/service/impl/TiffFilePreviewImpl.java
@@ -40,9 +40,9 @@ public class TiffFilePreviewImpl implements FilePreview {
     @Override
     public String filePreviewHandle(String url, Model model, FileAttribute fileAttribute) {
         String tifPreviewType = ConfigConstants.getTifPreviewType();
-        String previewType = fileAttribute.getPreviewType();
-        if (StringUtils.hasText(previewType)) {
-            tifPreviewType = previewType;
+        String tifOnLinePreviewType = fileAttribute.getTifPreviewType();
+        if (StringUtils.hasText(tifOnLinePreviewType)) {
+            tifPreviewType = tifOnLinePreviewType;
         }
 
         if("tif".equalsIgnoreCase(tifPreviewType)){
diff --git a/server/src/main/resources/web/pdf.ftl b/server/src/main/resources/web/pdf.ftl
index 1d65159c..f2e3b724 100644
--- a/server/src/main/resources/web/pdf.ftl
+++ b/server/src/main/resources/web/pdf.ftl
@@ -37,7 +37,7 @@
     }
 
     function goForImage() {
-        var url = window.location.href + "&previewType=jpg"
+        var url = window.location.href + "&tifPreviewType=jpg"
         if (url.indexOf("officePreviewType=pdf") != -1) {
             url = url.replace("officePreviewType=pdf", "officePreviewType=image");
         } else {