Vonango
Print Evaluation Service

Know before you print.

Submit a URL to an image. Get back a full print-readiness report — content moderation, color space, resolution, sharpness graded for five standard print sizes, and exposure & lighting — plus optional AI upscaling and text-prompt editing.

Use it now, no signup View API docs

What you get back

One API call, one report. Every evaluation covers the core checks below; add-on services run alongside them.

Content moderation

Vision-based analysis of subject matter, composition, and inappropriate-content flags — configurable strict/moderate/permissive policy.

Color & metadata

Embedded color profile, color space (CMYK/indexed/low bit depth flags), dominant colors, camera EXIF where present.

Print-size sharpness

Graded poor/fair/good/excellent across five standard print sizes, from wallet-size up to gallery-scale.

Exposure & lighting

Deterministic pixel-histogram analysis for too-dark, overexposed, and low-contrast images, summarized in plain English.

Upscaling add-on

Three tiers — fast Real-ESRGAN, higher-fidelity Topaz, or AuraSR-v2 for larger source images — non-generative, so detail is sharpened, never invented.

Text-prompt editing New

Describe the edit you want in plain language — background removal, retouching, style changes — powered by Replicate's image models.

How it works

01

Submit a URL

POST an originalUrl pointing at your already-hosted image, plus any optional add-on services.

02

We evaluate it

Content, color, sharpness, and exposure run in parallel, typically finishing in a few seconds.

03

Poll for the result

GET the evaluation by id until status flips to completed, then read the full report.

Use it now

This panel calls the real, live API directly from your browser using a small shared demo key, so you can see exactly what you'd get back. Sign up for your own key and a bigger quota.

For production use, or your own private API key, see Getting an API key in the docs.

or paste your own image URL

Must respond 200 directly (no redirects) and serve JPEG/PNG/TIFF/BMP/HEIC. This demo quota is small and shared by every visitor.

Sign up or log in

A free account gets you your own API key for the demo panel above — a bigger quota than the shared public one, no expiry pressure.

At least 8 characters, with an uppercase letter, a lowercase letter, and a number.

or

Need a key without an account? See Getting an API key in the docs.