Support

Getting Started

System Requirements

• macOS 14.0 (Sonoma) or later
• Apple Silicon (M1, M2, M3, M4 or later)
• At least 16 GB RAM recommended
• ~10 GB free disk space for the AI model

First Launch

1. Open GhostTeX and click on the AI Engine status chip in the top bar.
2. The Qwen3-VL model (~9.5 GB) will begin downloading. This is a one-time download.
3. Once the status shows Loaded (green dot), you're ready to go.
4. Drop a PDF into the app or use File → Open.

Full Document Mode

Convert entire PDF pages to LaTeX or Markdown.

1. Drop a PDF file into the left panel.
2. Choose your Document Type (Scientific Paper, Textbook, Handwriting, etc.).
3. Choose Output Format (Raw Markdown or LaTeX).
4. Optionally set a Page Range (e.g., 1-3, 5, 10-12).
5. Click Start. Each page is processed sequentially and results appear in real time.
6. Use Copy LaTeX, Save as .tex, or continue editing in the built-in editor.

Tips

• Higher Qwen Image Resolution (2048 px) gives better results for dense equations but uses more VRAM and time.
• The Scientific Paper document type works best for physics, math, and engineering papers with heavy equation content.
• Raw Markdown output is saved automatically alongside your .tex file for reference.

Equation Capture Mode

Extract individual equations from a PDF or image by drawing a selection rectangle.

1. Switch to Equation Capture using the tab at the top.
2. Drop a PDF, PNG, or JPEG file into the drop zone.
3. Navigate to the page containing the equation you want.
4. Click and drag to draw a rectangle around the equation.
5. The extracted LaTeX appears in the right panel.
6. Crop additional equations — each one is appended automatically.

Tips

• Include some surrounding text in your crop — it helps the AI identify ambiguous symbols (e.g., distinguishing δ from s).
• Use Clear LaTeX to reset the output without closing the document.
• You can also drop PNG/JPEG images of handwritten equations directly.

Chat with Qwen

After extracting LaTeX, click Chat with Qwen to refine the output. You can ask the AI to:

• Fix specific symbols or notation
• Convert between equation environments (e.g., equation* to align*)
• Add missing labels or equation numbers
• Simplify or restructure the LaTeX

Troubleshooting

Model download stuck or fails

• Ensure you have a stable internet connection.
• Check you have at least 10 GB of free disk space.
• Restart the app and try again — the download resumes from where it left off.

Poor equation quality

• Increase Qwen Image Resolution to 2048 px.
• In Equation Capture mode, include more context around the equation in your crop.
• Use Scientific Paper document type for best equation extraction.
• For handwritten equations, ensure the writing is clear and well-lit.

App is slow or unresponsive during processing

• Close other memory-intensive applications.
• Use a smaller page range instead of processing the entire document.
• Lower the image resolution to 1024 px for faster processing.
• M1 Pro/Max/Ultra and newer chips provide significantly faster processing.

Subscription issues

• Subscription is managed by Apple. Go to System Settings → Apple ID → Subscriptions to manage or cancel.
• If you're not seeing your subscription, ensure you're signed in with the correct Apple ID.

Keyboard Shortcuts

• ⌘O — Open file
• ⌘S — Save as .tex
• ⌘C — Copy selected text
• ⌘F — Find in LaTeX output
• ⌘Z — Undo
• ⌘⇧Z — Redo