OCR Tools

Mark Shot – screenshot and annotation tool

Mark Shot is a high-performance screenshot and annotation tool built with Qt 6. It supports Linux desktops running Wayland or X11 as well as Windows.

The software provides region capture, rich annotation tools, OCR, pinned screenshots, scrolling capture, screen recording, and image uploads.

This is free and open source software.

Key Features

  • Capture regions, full screens, or individual displays.
  • Annotate screenshots with pens, highlighters, lines, rectangles, ellipses, arrows, and text.
  • Obscure sensitive information using a mosaic blur tool.
  • Magnify parts of an image with independently adjustable source and lens frames.
  • Scan QR codes and barcodes directly from the screen.
  • Pin cropped regions or annotated screenshots as floating windows.
  • Recognize and copy text from screenshots with OCR.
  • Translate OCR text using OpenAI-compatible language models.
  • Capture scrolling regions and stitch frames into long screenshots.
  • Record selected displays or regions as GIF or MP4.
  • Upload screenshots to configurable image hosting services.
  • Supports Wayland, X11, GNOME, and KDE environments.
  • System tray integration with global capture hotkeys.
  • Open existing images directly in annotation mode.

Website: github.com/jswysnemc/mark-shot
Support:
Developer: Tadokoro Koji
License: MIT License

Mark Shot help

Mark Shot is written in C++. Learn C++ with our recommended free books and free tutorials.


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