Advanced MRC compression with GdPicture.NET Document Imaging SDK

ORPALIS launches the new and updated version of the Mixed Raster Content compression engine in GdPicture.NET Document Imaging SDK.

Muret, France, July 25th

Sharing electronic colored documents is often complicated for many reasons: the file size is usually very big, and when the size becomes acceptable, it’s often to the detriment of quality.

Mixed Raster Content (MRC) is a method for compressing images that contain both binary-compressible text and continuous-tone components, using image segmentation methods to improve the level of compression and the quality of the rendered image. By separating the image into components with different compressibility characteristics, the most efficient and accurate compression algorithm for each component can be applied.

For instance, MRC compression on a single document image can combine JBIG2 compression, Automatic Color Detection, JPEG and PNG compression, and more.

MRC compression is optimal on structured images, or images with forms because each element of the document is compressed with a different technology.

ORPALIS’s research work on compression started in 2003 with the first release of GdPicture.NET. The goal with MRC compression is to avoid losing any information. To achieve the best results, a constant focus is kept on segmentation and the document’s structure. Tests show documents compressed more than 10 times.

MRC Compression, along with Automatic Color Detection, is available in GdPicture.NET Document Imaging SDK since version 11. GdPicture.NET version 14.0.60 provides a dramatically enhanced version of the MRC compression engine.
This feature is also available in DocuVieware HTML5 Viewer and Document Management Kit, which is powered by GdPicture.NET SDK.

ORPALIS includes the updated MRC engine in its productivity tools offer:

GdPicture.NET Document Imaging SDK can be downloaded and tried free of charge (technical support included) for 60 days on


ORPALIS is specialized in automating large-scale document-based processes, providing document imaging and document-management toolkits as well as software tools for the general public. ORPALIS is the creator, developer, and owner of the comprehensive document imaging toolkit series released under the brand “GdPicture”, now a worldwide known and respected leader in the imaging technologies industry. More than 13,000 developers based in over 70 countries have included GdPicture components in their applications. In 2011 ORPALIS releases PaperScan, marking the beginning of a new line of products meant for end-users. PDF Reducer is launched in 2013. In 2015 a most powerful universal HTML5 viewer and document management kit called DocuVieware is made available to the public. The same year, a software tool for converting scanned documents to the searchable PDF/OCR format, the ORPALIS PDF OCR, is launched. In 2016 DocuVieware Lite Free HTML5 Document Viewer is released. PassportPDF, released in 2018, is a modern cloud infrastructure offering freemium microservices dedicated to addressing document management challenges of professional and general public users. / /