Automated Analysis of Phase Diagrams -- An Approach for Detecting Circular Callouts in Architectural, Engineering and Constructional Drawing Documents -- A System for Automatic Elevation Datum Detection and Hyperlinking of AEC Drawing Documents -- Multimodal classification of document embedded images -- Searching for a Compressed Polyline with a Minimum Number of Vertices -- Pen-based Music Document Transcription with Convolutional Neural Networks -- Optical Music Recognition by Long Short-Term Memory Networks -- Extracting information from molecular pathway diagrams -- Extraction of ancient map contents using trees of connected components -- Extracting the February 1956 Ground Level Enhancement Event From Legacy Cosmic Ray Recordings -- Engineering Drawing Challenge II -- Discussion Group Summary: Optical Music Recognition -- Discussion Group Summary: Graphics Syntax in the Deep Learning Age -- Two Decades of GREC Workshop Series. Conclusions of GREC2017.