callas pdfGoHTML 2.0 released

04 Oct 2018


Berlin, October 4, 2018 – callas software, a leading provider of automated PDF quality assurance and archiving solutions, today published version 2.0 of callas pdfGoHTML. This free Adobe Acrobat plugin converts tagged PDF files into HTML format. A key feature of this new release is the total redesign of the way that tag structures are visualized. callas pdfGoHTML 2.0 is also significantly more robust when handling PDFs with unusual or very complex tag structures, and it now also fully supports PDF 2.0.

callas pdfGoHTML has been making tagged PDFs more accessible since 2012, converting their content into HTML and then opening these HTML files in the user’s browser. The focus in this context is on an intuitive color-coded representation of the structure of the file content — an ideal complement to the tag tree visualization in Acrobat Pro which can often be difficult to read. As a result, quality control for tagged PDFs becomes a much faster process, and tagging problems can be identified and resolved extremely quickly. callas pdfGoHTML also provides a number of other views to make it easier to assess potential display formats for a tagged PDF, including relaxed reading, higher-contrast, inverted or large-print formats.

"This makes callas pdfGoHTML 2.0 an indispensable companion for all creators of accessible tagged PDFs — particularly those that need to meet the PDF/UA standard", said Dietrich von Seggern, Managing Director at callas software GmbH.

About callas software

callas software finds simple ways to handle complex PDF challenges. As a technology innovator, callas software develops and markets PDF technology for publishing, print production, document exchange and document archiving. callas software helps agencies, publishing companies and printers to meet the challenges they face by providing software to preflight, correct and repurpose PDF files for print production and electronic publishing. Businesses and government agencies all over the world rely on callas software’s future-proof, fully PDF/A compliant archiving products. In addition, callas software technology is available as a programming library (SDK) for developers with a need for PDF optimization, validation and correction. Software vendors such as Adobe®, Quark®, Xerox® and many others have recognized the quality and flexibility provided by these callas tools and have incorporated them into their solutions.

callas software actively supports international standards and has been participating in DIN, ISO, CIP4, the European Color Initiative, the PDF Association. BITKOM and the Ghent Workgroup. In addition, callas software is a founding member of the PDF Association.

callas software is based in Berlin, Germany. For more information, visit the callas software website at:

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