Tracing Paper – Light Box, developed by Csákvári Dávid, is an application that enables users to trace images by displaying them on a smartphone screen and placing paper over the device. By using the phone as a light source, the app functions as a digital lightbox for tracing and sketching purposes.

Users can load an image within the app and make adjustments such as resizing or rotating it to achieve proper alignment. Once positioned, the image can be traced directly onto physical paper. Overall, the app is designed to support basic image tracing tasks on Android devices. However, it does not include advanced image editing features beyond its core tracing functions.

Image display and tracing features

The app displays an image on the smartphone screen for use as a tracing reference. To support accurate placement, it allows users to rotate, resize, zoom, mirror the image, and adjust screen brightness as needed. Users can also select a background to improve image visibility during tracing. During use, a screen lock feature can be enabled to prevent the display from turning off or changing. Together, these features support basic image tracing on a mobile device.

Open-source availability

Tracing Paper – Light Box has its source code publicly available on GitHub. This allows users to view the app’s implementation and review its codebase. The availability of the source code also makes it possible for users to report issues or suggest changes through the repository. The developer’s engagement through an open development process enhances the app’s reliability and invites collaboration between creators and users.

Mobile lightbox tracing application

Tracing Paper – Light Box serves as a practical digital tool for transferring images onto physical paper using a mobile device. Its simple feature set and open-source availability make it suitable for users seeking a straightforward tracing solution. The app focuses on core tracing functions rather than advanced tools, which may appeal to users with basic tracing needs. The limited feature scope suggests that it is best suited for informal tracing and sketching tasks.