@@ -25,6 +25,12 @@ If your server meets all of the requirements described on this page, CiviCRM *sh
In general, CiviCRM is a demanding web application which requires substantial server resources. It may not perform well on all hosting platforms. Learn more about [choosing your hosting platform](../planning/hosting.md).
### Optional Libraries
Some people report better performance in some circumstances when rendering PDF files (e.g. reports or invoices). CiviCRM has a configuration option to use a system binary for WKHTMLtoPDF. [https://wkhtmltopdf.org/](https://wkhtmltopdf.org/) You can find this setting under "System Settings" > "Misc".
Another reason to use it is it is [one option](..general/unicode_pdf) for handling unicode fonts needed for some languages.
## CMS {:#cms}
A CMS, or Content Management System, is a type of application which controls and manages the content of a website. CiviCRM must be installed within one of these compatible CMS platforms.
