Defining the Language in the Default Layout 
You can customize the default layout of documents for multi-language support in the Print Layout Designer tool according to your requirements for the following documents in SAP Business One:
Sales A/R and purchasing A/P documents, for example, invoices, deliveries, and so on
Payments, for example, incoming payments, outgoing payments, and so on
Checks for payment and sales opportunities
For more information, see Checks for Payment.
This enables you to define the language for the layout of the document. You can define one of the layouts as a default and assign specific layouts to selected business partners. For more information, see Assigning Default Layouts to Business Partners.
Prerequisites
You have chosen the required language in the document that you want to print in the Language field on the Logistics tab.
Procedure
Open the required document.
Do one of the following:
Choose
Tools 
Layout Designer... 
.In the toolbar, choose
(Layout Designer...).
The Layout and Sequence window appears.
For more information, see the document How to Customize Printing Templates with the Print Layout Designer, which you can download from the documentation area of the SAP Business One Customer Portal (http://service.sap.com/smb/sbocustomer/documentation).
Select the required layout and choose the Manage Layout button.
The Report and Layout Management window appears.
On the Layouts tab, choose the required PLD-type layout.
Choose the Edit button. The selected layout appears.
From the Print Layout Designer menu, choose
Display Document Properties General tab.The Document Properties window appears.
In the Language dropdown list, select the required language. By default, the language in which the document was created is displayed.
To print one of the following in a foreign language, choose the Foreign checkbox (optional):
The international currency code and description
For more information, see Currencies - Setup Window.
G/L accounts for reports
Items for documents
To save the layout, choose the Update button and the OK button.