Smart Image Annotation – Label, Callout & Explain Photos

Smart Image Annotation helps turn ordinary photos into clear explanation images, tutorial visuals, product notes, or paper-style figure callouts. It can detect important areas in a picture, add annotation boxes, create a magnified detail preview, connect the original area to the enlarged view, and export a polished result image for saving or sharing.

1. Open Smart Image Annotation

Choose Smart Image Annotation from Your Tools, then import an image from Files, take a new photo, or read the short usage guide. The feature is designed for local image processing, so your source photo can be prepared directly on your device before editing.

Open Smart Image Annotation from the Your Tools tool list

2. Detect and Edit Annotations

Tap Recognize to let the app analyze the image. It first uses on-device machine learning and Vision capabilities to identify likely subjects, text, people, animals, or objects. When a model cannot confidently decide, Core ML object detection and manual annotation act as fallbacks, so you can still add, move, resize, label, or delete custom callouts yourself.

Machine learning image annotation with custom callouts

3. Configure Output

Before exporting, open Output Settings to choose the export scale and image format. The feature supports multiple resolutions and common image formats such as JPG, PNG, and WebP, making it easier to balance clarity, file size, and sharing compatibility.

Configure annotation image output scale and format

4. Save and Share the Result

After generation, preview the final annotated image and zoom in to inspect details. You can save the result to Photos, export it to Files, share it with other apps or social media, or return to the photo list to start another annotation task.
Note: Image detection, Core ML fallback, manual editing, rendering, and export are all handled locally on your device.

Save, export, and share the annotated image result

When You'll Need an Image Annotation Tool

Frequently Asked Questions

Does annotation work offline?

Yes. Detection, Core ML fallback, editing, rendering, and export all run locally on your device. No internet connection is required.

What output formats are supported?

JPG, PNG, and WebP are supported, with multiple resolution options to balance clarity and file size.

Can I add custom labels manually?

Yes. You can add, move, resize, relabel, or delete custom callouts at any time, even when AI detection has already identified subjects.

Download Your Tools on the App Store