Ingoing and Outgoing Requests Are Blocked by Network Infrastructure


PSPDFKit Server has been deprecated and replaced by PSPDFKit Document Engine. All PSPDFKit Server and PSPDFKit for Web Server-Backed licenses will work as before and be supported until 15 May 2024 (we will contact you about license migration). To start using Document Engine, refer to the migration guide. With Document Engine, you’ll have access to robust new capabilities (read the blog for more information).

The server where PSPDFKit Server is installed will need to connect to for activation. Make sure to also allow requests to subroutes of this URL, such as*. The port is the default port for HTTPS connections, 443.