macOS Gatekeeper Blocks the StereoPhoto Maker Bundle: The Author’s Fix
The official macOS package of StereoPhoto Maker is a Wine bundle: the Windows program (v6.20 core) wrapped so it runs on a Mac. Because it is not notarised by Apple, Gatekeeper may refuse to open it after download. The author publishes the official workaround himself — this guide explains it plainly, including what it does and does not do.
First, what you actually downloaded
The bundle is large (about 252 MB) and unpacks to over 1 GB. It is confirmed by the author on Intel and Apple Silicon (M1) Macs running macOS High Sierra through Monterey. Newer macOS versions are not officially confirmed — if you are on one, you are experimenting, and the Mac guide sets expectations honestly.
The author’s Gatekeeper fix
- Unzip the bundle and move the app where you want to keep it.
- Open Terminal.
- Run the command the author specifies:
sudo xattr -r -d com.apple.quarantinefollowed by the path to the app (dragging the app onto the Terminal window types its path). - Enter your password when asked, then open the app normally.
What this does: macOS tags downloaded files with a “quarantine” attribute, and Gatekeeper checks that tag. The command removes the tag from this one app. It does not disable Gatekeeper system-wide, and it is the same approach Apple documents for developers.
What will not work inside the bundle
The built-in browser feature does not work in the Mac bundle — that is a known limitation the author states, not a fault with your machine. The stereo editing itself runs as the v6.20 Windows core does.
Only apply quarantine removal to files you obtained from the author’s official page (linked from our download page). The whole point of the check you are bypassing is provenance — keep the provenance trustworthy.