Screenshot detection via browser API

[francesco_sf]

Hi, I'm Francesco from SmartFrame.io. One of our main goals is to safeguard images against theft and unauthorized usage. As part of this mission, we are proud members of the Content Authenticity Initiative - a community of media and technology firms, NGOs, academics, and other stakeholders dedicated to advancing an open industry standard for verifying content authenticity and origin.

I want to highlight the importance and potential benefits of implementing a screenshot detection feature via an exposed browser API. Currently, many messaging applications incorporate screen capture detection mechanisms for privacy protection. By integrating an API for detecting screen captures, users could receive notifications if a screenshot of their content is taken.

It's crucial to note that this feature shouldn't be viewed as DRM protection, but rather as a means to inform users of possible copyright violations.

As of 2024, these are the solutions that exist for detecting screenshots, depending on the operating system being used:

• macOS (https://stackoverflow.com/questions/4516852/detect-when-a-user-takes-a-screenshot/5685024#5685024)
• Windows (https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-setwindowdisplayaffinity)
• iOS (https://developer.apple.com/documentation/uikit/uiapplication/1622966-userdidtakescreenshotnotificat...)
• Android (https://developer.android.com/about/versions/14/features/screenshot-detection)

This feature could be rolled out with partial support across various operating systems.

[mamta25]

Hi Francesco

Thank you for sharing this idea. It’s encouraging to see a focus on protecting content in a way that keeps users informed without being overly restrictive.

The concept of screenshot detection as a notification feature makes a lot of sense, particularly for raising awareness about how content might be used. At the same time, there are some challenges, since different operating systems handle screenshots differently and browsers tend to be cautious about exposing system-level actions due to privacy concerns.

There are existing solutions, such as the screenshot API, which demonstrate how screenshots can be detected and handled across platforms.