PDFreactor can connect to servers using the HTTPS protocol. However, Java requires the server's certificate to be imported. To avoid that you can use a more convenient approach by setting the HTTPS mode of the PDFreactor configuration to "lenient":
Java
config.setHttpsMode(HttpsMode.LENIENT);
C#
config.HttpsMode = HttpsMode.LENIENT;
PHP
$config["httpsMode"] = HttpsMode.LENIENT;
JavaScript/Node.js
config.httpsMode = PDFreactor.HttpsMode.LENIENT;
Python
config["httpsMode"] = PDFreactor.HttpsMode.LENIENT
Ruby
config["httpsMode"] = PDFreactor::HttpsMode::LENIENT
Perl
$config["httpsMode"] = PDFreactor::HttpsMode->LENIENT;
CLI
--httpsMode "LENIENT"
REST
{ "httpsMode": "LENIENT" }