【编辑工具】压缩，自定义质量，浮窗中数据要居中 -- 修复

PDF Office/PDF Master/Class/Batch/View/KMSlider.swift

@@ -49,7 +49,7 @@ class KMSlider: NSSlider, NSPopoverDelegate{
         tipView.backgroundColor = NSColor.clear
         tipView.isEditable = false
         tipView.isSelectable = false
-        
+        tipView.alignment = .center
         let contentView = NSView()
         contentView.addSubview(tipView)