No. 07 — AI Tools · Cloud HDPro · on our GPU

Enhance for print, sharp at paper size.

Paper is unforgiving in different places from a screen. Clean the photograph at its native size first, do the pixel arithmetic honestly, and only then enlarge — that order is the whole trick, and it is why enhancement here deliberately hands back the same dimensions.

Pro · Cloud HDDeleted on completionUp to 25 MB · 24 MP
Prepare a photo for printCloud HD · our GPU

How it works

  1. Pick the photo at its full original size — JPEG, PNG or WebP up to 25 MB and 24 megapixels.
  2. It is uploaded to our server for that run and deleted when the run finishes, and in all cases within 24 hours.
  3. Download the cleaned file at the same dimensions, then enlarge it separately if the print needs more pixels.

This page is the AI photo enhancer, tuned to the arithmetic and the order that printing demands.

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Enhance a Photo for PrintingPro, on our server

Print resolution is arithmetic, and the arithmetic settles most arguments. Dots per inch is a ratio, not a property the file carries around — the same 3000 by 2000 pixel photograph is 300 DPI at ten inches wide and 150 DPI at twenty. So the first thing to establish is the finished size, and the second is how close anyone will stand: a print held in the hand wants roughly 300 DPI, a framed picture across a room is convincing at half that, and a poster read from several paces is fine lower still. The free DPI checker reports what your file claims today, entirely in your browser.

Clean first, enlarge second, and never the other way round. The Cloud HD enhancer returns the pixel dimensions it was given, which sounds like a limitation and is actually the correct behaviour for print preparation: an enlarger is faithful, so it magnifies noise and JPEG blocking as diligently as it magnifies the subject. Clean at native size, then take the result to the image upscaler. Its Cloud HD four-times path accepts up to 4 megapixels of input, produces up to 16× the pixels of the input — a 4 MP photo comes back at about 64 MP pixels, takes four to five minutes on a 4-megapixel file, and draws the HD sub-quota — 10 of your monthly runs may be HD-class.

Paper punishes different sins from a screen. Fine speckle largely disappears into ink texture, so a slightly noisy file often prints better than it looks zoomed in. What does show is flatness: skin smoothed until it has no pores, foliage smoothed until it has no leaves, gradients that band across a sky. That is the argument for a reconstruction model over a smoothing filter, and the argument for checking a candidate at 100% before committing to a large print. For prints made from scans, the scanned-photo page covers the capture side, and the sibling on upscaling a photo for printing goes further into the enlargement half.

What a run costs, and where your photograph goes while it runs. One enhancement is a single general Cloud HD run out of 150 a month on Pro Monthly or 200 on Pro Annual; the allowance resets on the 1st in UTC, does not roll over, and is capped at 30 runs an hour. Prices exclude tax. Cloud HD is Pro-only and opt-in, and it is the one part of MiniPx that leaves your device: your photo is uploaded to our server for that run and deleted when the run finishes, and in all cases within 24 hours, processed in the United States on Cloudflare R2 storage and Modal GPUs, encrypted in transit, and never used to train anything. The enhancement model, RestoreFormer++ at present, is named on every result.

How it works

  1. Work out the pixels the print needs: Inches times DPI. A 6 by 4 at 300 DPI is 1800 by 1200 pixels; compare that with what your file actually has.
  2. Enhance at native size: Run one Cloud HD pass on the original — JPEG, PNG or WebP up to 25 MB and 24 megapixels — so the file is clean before anything magnifies it.
  3. Enlarge only if you are short of pixels: Take the cleaned result to the upscaler. The Cloud HD four-times path accepts up to 4 megapixels in and produces up to 16× the pixels of the input — a 4 MP photo comes back at about 64 MP.
  4. Proof before you commit to a big print: View at 100%, then order a small test print from the lab that will make the final one. Screens and paper disagree in predictable ways.

Frequently asked questions

How many pixels do I need for a print at a given size?
Multiply the inches by the dots per inch you are aiming for. At 300 DPI, a 6 by 4 inch print wants 1800 by 1200 pixels — 2.2 megapixels; an A4 wants roughly 3500 by 2480, about 8.7 megapixels. Both sit inside the 25 MB and 24-megapixel Cloud HD input limits with room to spare.
Do I enhance before enlarging, or after?
Before, always. Enhancement returns the same pixel dimensions, which is exactly what you want first: an enlarger magnifies whatever it is handed, so any noise or compression damage left in the file gets multiplied along with the picture. Clean at native size, then enlarge the cleaned version, and each tool is doing the job it is good at.
Does noise look worse on paper than on a screen?
Usually less bad, and over-smoothing looks worse. Ink on paper has its own texture that hides fine speckle, while a display renders every pixel exactly. The failure that does show on paper is a photograph smoothed until skin and fabric have no surface left — flat areas print flat. Judge a print candidate at 100% and be conservative.
What resolution will a print lab actually ask for?
Most consumer labs specify 300 DPI at final size and quietly accept less, because viewing distance forgives a great deal — a poster read from two metres away is fine at 150. Ask for the lab’s own minimum rather than guessing, and check what your file currently reports with the on-device DPI checker before you upload anywhere.
Will the printed colours match what I see on screen?
Not exactly, and no enhancement changes that. A screen emits light and a print reflects it, so deep blacks and vivid blues in particular land differently on paper. Neither the enhancer nor the upscaler is a colour-management tool: for a print that must match, order a small test print from the same lab and the same file first.