Get the latest tech news
Qimgv – Fast, simple image viewer
Image viewer. Fast, easy to use. Optional video support. - easymodo/qimgv
method)Hold right mouse button & move up / downFit mode: window1Fit mode: width2Fit mode: 1:1 (no scaling)3Switch fit modesSpaceToggle fullscreen modeDoubleClick / F / F11Exit fullscreen modeEscShow EXIF panelICrop imageXResize imageRRotate leftCtrl+LRotate RightCtrl+ROpen containing directoryCtrl+DSlideshow mode~Shuffle modeCtrl+~Quick copyCQuick moveMMove to trashDeleteDelete fileShift+DeleteSaveCtrl+SSave AsCtrl+Shift+SFolder viewEnter / BackspaceOpenCtrl+OPrint / Export PDFCtrl+PSettingsPExit applicationEsc / Ctrl+Q / Alt+X / MiddleClickNote: you can configure every shortcut by going to Settings > Controls When you've created your script go to Settings > Controls > Add, then select it and assign a shortcut like for any regular action. If qimgv appears too small / too big on your display, you can override the scale factor.
Or read this on Hacker News