callas software GmbH
callas software was founded in 1995 and has focused on making PDF files usable in production environments from the start. While PDF was designed as a flexible and open format, using it reliably in production – where standardization matters – often proves challenging. callas develops technology to identify PDF files that will cause problems in production and to address those issues early in the workflow.
Close involvement with end users, OEM customers, and standardization bodies keeps the software aligned with real-world production requirements. Working with imperfect, real-world PDF files has resulted in software with a learning curve, designed to control complexity rather than hide it. The callas products actively correct PDF files, prepare them for production, and generate derived outputs such as proof sheets, order overviews, delivery documents, or archived content.
callas is primarily active in print production, document exchange, archival, and accessibility workflows.
For more information, visit the callas software website at: www.callassoftware.com.
Member Info
Partner Member
Joined September 2006
Headquartered in Germany
http://www.callassoftware.com/
Staff
Published Articles
November 2023, Dietrich von Seggern
Callas software’s Dietrich von Seggern describes a few of the innovative technologies under consideration for PDF as discussed … Read more
March 2023, Dietrich von Seggern
PDF/A – the ISO standard for long-term archiving – now has four sub-standards. This raises an obvious question: … Read more
December 2022, Dietrich von Seggern
Dietrich von Seggern from callas software explains, how companies can optimally prepare PDF files for variable data printing.
October 2022, Dietrich von Seggern
Some time ago Adobe announced that it “will disable support for authoring with Type 1 fonts by January … Read more
August 2022, Akash Choudhary
Dietrich von Seggern and Akash Choudhary from callas software and David van Driessche from Four Pees are presenting … Read more
October 2021, Dietrich von Seggern
Dietrich von Seggern from callas software explains why companies should not leave the generation of PDF/A to their … Read more
October 2021, Dietrich von Seggern
callas software’s Dietrich von Seggern describes what “owned by ISO” really means, and why that matters, in celebration … Read more
September 2021, Dietrich von Seggern
Dietrich von Seggern from callas software explains PDF standards with a focus on the newest standards.
Published News
January 2026, David van Driessche
callas software gab heute den Start eines neuen Zertifizierungsprogramms bekannt.
January 2026, David van Driessche
callas software today announces the launch of a certification program for its software. The program allows experts to … Read more
November 2025, David van Driessche
callas software gab heute die Ernennung von Elahe Saberinia zum Channel-Manager bekannt.
November 2025, David van Driessche
callas software today announces the appointment of Elahe Saberinia as Channel Manager.
October 2025, David van Driessche
In this article, David van Driessche, Chief Evangelist at callas software, describes the benefits of using OEM technologies … Read more
September 2025, David van Driessche
callas software GmbH is expanding its involvement in the OEM business and has launched a special website that … Read more
September 2025, David van Driessche
callas software weitet sein Engagement rund um das OEM-Geschäft aus und dazu unter anderem eine spezielle Website veröffentlicht, … Read more
May 2025, Sarah Nitschmann
callas software has published a comprehensive white paper to assist in navigating the discussions around standards, preflight checks, … Read more
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