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ngPDF version 2.5 is released

Dual Lab is proud to announce the new release of the web application ngPDF that demonstrates the use of Tagged PDF documents in the Open Web world. The application demonstrates the implementation of the derivation algorithm developed by the PDF Association. The new version includes a number of significant improvements: improved compliance of the Derivation algorithm implementation possibility to add, delete and modify entries in the ClassMap and RoleMap structures improved editing of the structu … Read more
About the author: Boris Doubrov is CEO of Dual Lab, the company specializing in product development services in the areas of Computer Graphics, CAD/CAM Modelling and other Science-intensive areas. Boris Doubrov holds a … Read more
Boris Doubrov

Boris Doubrov
October 22, 2019

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Dual Lab is proud to announce the new release of the web application ngPDF that demonstrates the use of Tagged PDF documents in the Open Web world. The application demonstrates the implementation of the derivation algorithm developed by the PDF Association.

The new version includes a number of significant improvements:

  • improved compliance of the Derivation algorithm implementation
  • possibility to add, delete and modify entries in the ClassMap and RoleMap structures
  • improved editing of the structure element attributes, classes and other dictionary entries
  • full control over the files associated with structure elements
  • a quick start Tagged PDF sample available
  • improved help and tooltips
  • new user feedback form to report any issues with PDF to HTML conversion

The new version 2.5 is immediately available for demo use at https://www.ngpdf.com !

NGpdf screen shot.


Dual Lab provides top quality product development services in graphics arts and other technology-intensive areas. This includes processing of virtually any known file format in computer graphics, PDF/Postscript generation, conversion and editing, deep knowledge of font technologies and typography challenges, expertise in web2print and XML publishing solutions, plug-in development for…

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