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

proof GmbH was the first German company to be certified by the Swiss PDFX-ready Initiative for proof output of PDF/X-4 files. 
With this certification, we have successfully demonstrated that we can receive PDF/X-4 data according to PDFX-ready specifications and output it on our proof system.
The certification was carried out on behalf of PDFX-ready by Ugra and Fogra and is valid until February 2023.

Entry on www.pdfx-ready.ch
You can download the PDFX-ready certificate of proof GmbH as a PDF file here.