AI Assistance
The editor’s footer has an AI input with a provider picker. Three options:
| Apple Intelligence | On-device (macOS 26+, Apple silicon). No API key, no data leaves your Mac. |
| Google Gemini | Cloud, requires an API key (Settings). Image edits use Nano Banana 2 — fast, good for iteration. |
| Google Gemini (Pro) | Same key, image edits use Nano Banana Pro — better for complex edits, at higher cost and latency. |
How prompts are routed
Every prompt is first run through a small intent classifier that picks one of three modes: question, image edit, or annotation edit.
Apple Intelligence classifies on-device. With Gemini, this is a separate, text-only call to the Flash model (typically < 1 sec). So, each user prompt triggers two API calls — one tiny and one “real”.
The response panel narrates the decision — you’ll see a line like
» gemini-3.5-flash: imageEdit · 0.4s before the main call runs. If a prompt gets misclassified,
rephrase toward the verb — “draw a box around…” routes to annotations,
“remove / replace / recolor…” to image editing.
Ask questions
| Read text | “What does the highlighted text say?” |
| Summarize | “What is this dialog asking me to decide?” |
| Find things | “Find and sum up all the dollar values” |
Apple Intelligence reads the image through OCR (precise about text, less about pictures); Gemini sees the actual pixels.
Draw/edit annotations
| Mark one thing | “Circle the lightbulb”, “box the title text” |
| Mark many things | “Draw rectangles around every button” |
| Modify / remove | “Make the red box blue”, “delete the arrow” |
Shapes use your current toolbar style unless the prompt says otherwise. Each prompt request is a single Undo step. Gemini can batch mixed operations (create + delete + restyle) from one prompt.
Annotation drawing is fairly limited and experimental.
Adjust the image (Apple Intelligence)
Apple Intelligence supports basic adjustments, applied on-device through Core Image:
| Sharpen | “Sharpen the details.” |
| Brightness | “Brighten this by 20%.” |
| Contrast | “Bump the contrast significantly.” |
| Blur | “Add a slight blur.” |
These are image-wide “filters” rather than generative edits. They do not include targeted fine-tuning, content additions, or object removal. For those features, use Gemini below.
Edit the image (Gemini)
There are two ways you can direct edits to your image:
Plain prompts — describe the change in words:
| Replace | “Replace the sky with a sunset”. |
| Stylize | “Make it look like a watercolor”. |
| Remove | “Remove the person in the background”. |
Annotation-guided — mark up the canvas first (boxes, arrows, text notes), then tell the model to follow your markup. Visible annotations are sent alongside the image as a separate layer, and are not baked into the result:
| Follow markup | “Apply the edits per the annotations”. |
| Remove marked | “Remove everything inside the red box”. |
| Replace marked | “Replace the circled area with grass”. |
Output size
Gemini renders at its own native resolutions — it can’t produce exact pixel dimensions. PowerPic handles this for you:
- Normal edits come back resampled to your image’s original size.
- If you ask to upscale / enhance, or change the aspect ratio (“make it 16:9”), the larger result is kept and your annotations scale to match.
- For exact dimensions, finish with Edit Image → Resize.
The response panel tells you what took place, and the whole edit is one undo step.
Input tips
- ↑ / ↓ recall previous prompts; Return submits; Esc closes the panel.
- The ⓘ button shows provider-specific tips (click again to dismiss).