.. _requirements: Requirements ============ | **IMPORTANT**: to complete the installation, you must have full access to the web-server. | The installation requires the use of *Composer*, which must already be installed on the web-server. | You also need to install the wkhtmltopdf package and/or the Google Chrome web browser. | Refer to the :ref:`installation` for details. **IMPORTANT**: operation is only guaranteed on Linux web-servers