To restrict the sending of automatic e-mails from bots via the feedback form, or when generating PDF documents externally, a Captcha query can be used. The reCaptcha service is integrated into the Goobi viewer for this purpose.
The configuration is done in the following section of the configuration file:
config_viewer.xml
<reCaptchaenabled="false">
<providername="Google"siteKey="CHANGEME"/>
</reCaptcha>
The enabled attribute can be used to activate or deactivate the display. The siteKey is generated after free registration with the service for the instance and must then be entered here.