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1. Big Photo provides multiple options to enlarge or down size your photos or images to any custom sizes.

2. Big Photo provides crop tool to crop a "small" portion out of your full resolution photos/images, and produce high quality "blow up" results.

3. Big Photo provides capability to view large images or photos over 45MPs (like panoramas) up to 115MP for latest iPhone/iPad, as well as small icons, all in full resolution, and zoom to pixel level. Double tap to zoom in/out.

4. Big Photo provides Rotate/Flip at any angle, support alpha channel (transparent region).

5. Big Photo provides Batch Resizer - resize tens or hundreds of photos in batch mode. (In-App Purchase)

6. Image set generator - Generate a set of images (such as icons) from one single source image.

7. Pick picture from video for editing/saving

8. Scrollable EXIF viewer

9. Work as your device's universal image tool: for images in your emails or other apps, "Open in..." can launch Big Photo to view or edit.