Proof GmbH is PDFX-ready certified for the proof output of PDF/X-4 files

Proof GmbH is the only German company certified by the Swiss PDFX-ready Initiative for the Proof Output of PDF/X-4 files. 
With this certification we have successfully proven that we can receive PDF/X-4 data according to the specifications of PDFX-ready and output them on our proofing system.
The certification was carried out by the Swiss Ugra and Fogra on behalf of PDFX-ready and is valid until July 2020.

Further information on this topic can be found here.
You can download the PDFX-ready certificate of Proof GmbH as a PDF file here.