Engauge 9 is rewritten with Qt5. This digitizing software converts an image file showing a graph or map, into numbers. The image file can come from a scanner, digital camera or screen-shot. The numbers can be read on the screen, and written or copied to a spreadsheet. The process starts with an image file containing a graph or map. The final result is digitized data that can be used by other tools such as Gnumeric.

New features already added to Engauge:

- Fix loading of versions 6 and 7 DIG files with log coordinates - Undo/redo of all operations means recovering from mistakes and experimenting with options is painless - Wizard provides an interactive tutorial to explain the basic steps - Wizard creates a checklist guide to interactively leads user through steps from file import to file export - Cubic spline interpolation between points gives more accurate curves with fewer points - Axes Checker briefly highlights the axes when they are defined or modified, to reveal entry mistakes - Graph coordinates can be specified as date and time value, or as degrees, minutes and seconds - All settings dialogs are resizable so they can be enlarged as necessary to display more information - Import by drag-and-drop - Replacement of Qt3 (which is at its end of life) by Qt5 - Much better zooming, with a fill mode that automatically zooms in on image features, and rezooms when the application window is resized - Color picking straight from the original image - Uploadable error report generated when a programming error is encountered, for identifying problems and improving user support - Test suite for regression testing minimizes code breakage as new features are added - Multiple coordinate systems in the same image can be digitized in advanced mode - Axes with only one known coordinate (floating axes) can be digitized in advanced mode - File import by pasting