> Markdown version of [Licensing](https://vaadin.com/docs/v7/designer/designer-licensing). Section index: [llms.txt](https://vaadin.com/docs/v7/designer/llms.txt)

# <a id="designer.installing.license"></a>Licensing

The first time you start Vaadin Designer, it will ask for a license key. You can obtain a free trial-license, purchase a stand-alone perpetual license, or use the license included with your Pro Tools subscription. For instructions on how to install the license, see ["Installing Commercial Vaadin Add-on License"](https://vaadin.com/docs/v7/framework/addons/addons-cval.md#addons.cval).

Please note that a separate license key is required for each developer. If you choose not to enter a license, you will be unable to save your design.

If you for any reason need to remove or change a valid license, it is located in \~/.vaadin.designer.developer.license in UNIX systems and C:\Users\\\<username>\\.vaadin.designer.developer.license in Windows.