StereoPhoto Maker Troubleshooting

SPM is a small portable program, so most problems have simple causes: a missing DLL from the same folder, a macOS security prompt, or a format the bundled library handles. Start with the symptom you see.

Every article in this section is listed below. You can also browse the category archive, and the program itself is on the download page.

SPM Won’t Open or Crashes on Start

The portable-package checks that solve most startup failures.

macOS Gatekeeper Blocks the SPM Bundle

The author’s own terminal fix for the Wine bundle, explained plainly.

HEIC Files Won’t Open

Why HEIC needs the bundled spphotolib DLL (v6.40+) and how to check it is in place.

Anaglyph Ghosting: Causes & Fixes

Reduce double images in red-cyan anaglyphs with alignment and gamma correction.

Vertical Misalignment & Eye Strain

Diagnose and correct the vertical disparity that makes stereo pairs hurt to view.

Multi Conversion Dialog Cut Off

What to do when the batch dialog runs off a small or scaled display.

EXIF Data Lost After Saving

How SPM handles EXIF, and the ExifTool method that preserves it.

Antivirus Flags SPM: What To Know

The honest history of false positives around SPM, and how to verify your file with its SHA-256 hash.