How to Fix OBS Studio Zoomed In Screen

If your OBS Studio screen capture or game capture appears zoomed in or cut off, it is usually caused by a mismatch between your monitor’s resolution and the OBS canvas size, or an accidental scaling of the source. This article explains why this display issue happens and provides quick, step-by-step methods to instantly fit your capture to the screen.

Why Your OBS Capture is Zoomed In

The zoom effect occurs due to one of three common reasons: 1. Resolution Mismatch: Your source (like a 4K or 1440p monitor) has a higher resolution than your OBS Base Canvas (typically set to 1080p), causing only the top-left portion of the screen to be visible. 2. Accidental Scaling: The red boundary box of your source was accidentally stretched or dragged beyond the borders of the preview window. 3. Display Scaling (Windows): Windows DPI scaling (e.g., set to 125% or 150%) can force OBS to misinterpret the coordinates of your display.

How to Fit the Capture to the Screen

Method 1: Use the “Fit to Screen” Shortcut (Fastest)

The quickest way to resize any zoomed-in source is to use OBS Studio’s built-in transform commands. 1. Click on the zoomed-in source in the Sources dock or click directly on the preview window. 2. Press Ctrl + F on Windows (or Cmd + F on Mac). This will instantly scale the source to fit your canvas perfectly while maintaining the aspect ratio. 3. Alternatively, you can right-click the source in the preview, navigate to Transform, and select Fit to screen.

Method 2: Reset the Source Transform

If the source has been warped or heavily modified, resetting it will restore its default scale. 1. Right-click the problem source in the Sources list. 2. Hover over Transform and click Reset Transform (or press Ctrl + R / Cmd + R). 3. If the source is still too large, press Ctrl + F right after resetting it.

Method 3: Match Canvas Resolution to Your Monitor

To prevent future sources from appearing zoomed in, ensure your OBS canvas matches your actual monitor resolution. 1. Click Settings in the bottom-right corner of OBS. 2. Go to the Video tab on the left menu. 3. Set the Base (Canvas) Resolution to match your monitor’s native resolution (e.g., 1920x1080, 2560x1440). 4. Set the Output (Scaled) Resolution to your desired streaming or recording resolution (usually 1920x1080). 5. Click Apply and then OK.

Method 4: Adjust Windows DPI Scaling Settings

If the issue persists despite resizing, Windows display scaling might be interfering with OBS. 1. Close OBS Studio. 2. Right-click the OBS Studio desktop shortcut and select Properties. 3. Go to the Compatibility tab and click Change high DPI settings. 4. Check the box under High DPI scaling override that says “Override high DPI scaling behavior.” 5. Select System or System (Enhanced) from the drop-down menu. 6. Click OK, apply the changes, and restart OBS Studio.