Summary

Before you run a photo through an AI pet portrait generator, this free score checker analyzes it right in your browser: resolution against your chosen card size at 300 DPI, lighting measured pixel by pixel, framing fit, and background calm. It returns a 0-100 print-readiness score plus concrete fixes, no upload, no account, nothing stored.

Before You Use an AI Pet Portrait Generator, Check This Photo

Free score on resolution, lighting, framing, and background, right before you paint or print your pet's photo.

Score my pet photo

Pet Photo Print-Readiness Score

Upload the photo you're about to turn into an AI pet portrait. We check it against your card size at 300 DPI, read the lighting straight from the pixels, and flag a busy background, all in your browser.

This photo is analyzed on your device only. Nothing is uploaded, nothing is stored.

How the score works

Three things the print actually cares about

Resolution and framing, checked against your card

We compare your photo's pixel dimensions to what your chosen card needs at 300 DPI, the resolution print shops use for a sharp result, then check whether the aspect ratio can be cropped into that shape without losing your pet's ears or paws.

Lighting, read straight from the pixels

The tool averages the luminance of every pixel using the standard 0.299R+0.587G+0.114B formula used for perceived brightness. Below roughly 70 out of 255 the shadows are already too deep to paint out, above 200 the highlights are already blown.

Background calm, not a guess

It measures how much tone varies in the four corners of the frame. A calm wall or blanket stays in a narrow range, a cluttered shelf or patterned rug swings wide, and that variance predicts a muddy corner once a painted style is applied.

What good lighting actually looks like

Even, indirect light near a window keeps the fur detail a painted style needs, and keeps the corners of the frame calm rather than blown out or muddy. No on-camera flash, no midday sun cutting hard shadows across the face.

Small dog sitting in even natural window light against a plain background, an example of print-ready lighting

Questions people actually ask

Does this actually generate my pet's portrait?
No. This checks whether your photo is ready to be painted, it does not paint it. Run your photo through this first, then upload it to whichever AI pet portrait generator or style builder you use, ours included.
Is my photo uploaded anywhere?
No. Everything runs in your browser with the Canvas API. The file never leaves your device, and we do not see it, store it, or log it.
Where does the 300 DPI number come from?
300 dots per inch is the print-industry default for a photo that reads as sharp in the hand, not pixelated at typical card-viewing distance. Multiply it by your card's inches to get the pixel target: a 5x7 card needs 1500x2100px on the long edge.
Why is my background score low if the photo looks fine to me?
The score measures how much brightness varies in the corners behind your pet, not how the photo feels. Patterned wallpaper, a cluttered shelf, or dappled outdoor shade all read as high variance, even when the eye reads them as pleasant light.
What if my photo is a phone screenshot from a group chat?
It will usually fail the resolution check first. Screenshots get compressed and resized by whatever app forwarded them. Ask whoever has the original for the source file, or reshoot.
Which card format should I pick if I have not decided yet?
5x7 portrait is what most people who mail cards end up choosing, which is why it is the tool's default. Pick your real format if you already know it, since the framing score depends on it.
Does this work for two pets in one photo?
Yes, the resolution, lighting, and background checks do not care how many subjects are in frame. Framing is trickier: a wide shot of two dogs may need a landscape card format instead of the portrait default.
Is this free?
Yes, no account and no email gate. It is a companion to the printing side of the business, not a lead form.

Turn that photo into a card once it scores well

Upload the same file to Christmas Card Factory's style builder. We paint it in watercolor, oil pastel, or vintage postcard style, then print it on 300gsm stock and mail it from Portland.

Start your card
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  • comparison_fields_edited Comparison structure updated
  • comparison_fields_edited Comparison structure updated
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