feat: add page border

docs/en/guide/option.md

@@ -72,6 +72,7 @@ interface IEditorOption {
   lineBreak?: ILineBreakOption // LineBreak option. {disabled?:boolean; color?:string; lineWidth?:number;}
   separator?: ISeparatorOption // Separator option. {lineWidth?:number; strokeStyle?:string;}
   lineNumber?: ILineNumberOption // LineNumber option. {size?:number; font?:string; color?:string; disabled?:boolean; right?:number}
+  pageBorder?: IPageBorderOption // PageBorder option. {color?:string; lineWidth:number; padding?:IPadding; disabled?:boolean;}
 }
 ```
 
@@ -159,3 +160,14 @@ interface ILineNumberOption {
   type?: LineNumberType // Number type (renumber each page, consecutive numbering). default: continuity
 }
 ```
+
+## PageBorder Configuration
+
+```typescript
+interface IPageBorderOption {
+  color?: string // color. default: #000000
+  lineWidth?: number // line width. default: 1
+  padding?: IPadding // padding. default: [0, 0, 0, 0]
+  disabled?: boolean //  Whether to disable. default: true
+}
+```

docs/guide/option.md

@@ -72,6 +72,7 @@ interface IEditorOption {
   lineBreak?: ILineBreakOption // 换行符配置。{disabled?:boolean; color?:string; lineWidth?:number;}
   separator?: ISeparatorOption // 分隔符配置。{lineWidth?:number; strokeStyle?:string;}
   lineNumber?: ILineNumberOption // 行号配置。{size?:number; font?:string; color?:string; disabled?:boolean; right?:number}
+  pageBorder?: IPageBorderOption // 页面边框配置。{color?:string; lineWidth:number; padding?:IPadding; disabled?:boolean;}
 }
 ```
 
@@ -159,3 +160,14 @@ interface ILineNumberOption {
   type?: LineNumberType // 编号类型（每页重新编号、连续编号）。默认：连续编号
 }
 ```
+
+## 页面边框配置
+
+```typescript
+interface IPageBorderOption {
+  color?: string // 颜色。默认：#000000
+  lineWidth?: number // 宽度。默认：1
+  padding?: IPadding // 距离正文内边距。默认：[0, 5, 0, 5]
+  disabled?: boolean // 是否禁用。默认：true
+}
+```