You can add custom border to documents with Writer 2013. You can customize line weight, line color of the page border. See steps below.
To add a page border to your document, follow the steps below:
Step 1 Open the Page Layout tab, click the Page Borders icon, and open the Borders and Shading dialogue box. The default tab is the Page Border tab as shown below:
Figure 1 The Borders and Shading dialogue box
Step 2 In the Setting section, select one of the varieties of the border: None, Box, and Custom.
Step 3 In the Style list box, select the style of the border line, such as the double line, the dotted line, etc.
Step 4 In the Color drop-down list, select the color of the border line.
Step 5 In the Width drop-down list, select the width of the border line.
Step 6 In the Apply to drop-down list, select the application scope of the border.
Step 7 The potential changes you have made will be displayed in the Preview section.
Step 8 When satisfied, click the OK button to complete the operation.