Beuth Verlag, headquartered in Berlin, is part of the DIN Group and one of Germany's largest specialist information and knowledge service providers. Beuth publishes thousands of standards every year. With the two callas products, the publisher was able to significantly reduce the manual workload through a high degree of automation. Specifically, Beuth Verlag uses pdfaPilot and pdfToolbox, which validate PDF/A files and correct them as far as possible. The solutions rely on the same validation technology that Adobe has licensed from callas for the Preflight plug-in. At the same time, it ensures that the published DIN standards are compliant with the PDF/A ISO standard for long-term archiving.