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VECTOSOLVE

Case study: Large format print

From a 2,400 px AI image to a 12 x 13 ft wall mural at 300 ppi

A US print franchise had a customer's AI image that was far too small for the wall: 15 pixels per inch. Production had turned it down. We rebuilt it at 300 ppi in CMYK, without making up detail, and delivered 21 print-ready files the day after the call.

A US print franchise · November 2026

300 ppi43,800 x 47,100 pxThe file as sent2,400 x 2,400 px15 ppi on the wall19.6x bigger to fill it146 in157 inDiagram to scale, not the artwork
at full wall size, up from 15
300 ppi
pixels in the final file
2 billion
print-ready files delivered
21
from the call to delivery
Under 24 h

What came in

Client
A US print franchise
The file
AI-generated image, 2,400 x 2,400 px, CMYK JPEG
The job
UV-printed vinyl wall mural, 146 x 157 in (3.7 x 4 m)
The problem
Only 15 pixels per inch at that size. Production turned it down.
What they needed
300 ppi at full size, 2 in of bleed, panels for a 54 in printer roll

Sharp edges, nothing made up

Edge width at 300 ppi, measured on the same areas of the same file. Shorter is sharper.

  • Standard enlargement

    Nothing made up, but soft everywhere.

    66px

  • AI upscaler

    Paints in detail that was never there (19.2 % of the compared area) and drops the CMYK inks.

    48px

  • VectoSolve

    Sharp edges, 0.0 % made-up detail, CMYK kept.

    1.82px

How it went

  1. 1

    Day 1

    The call

    We looked at the file, the wall size and the printer roll.

  2. 2

    Overnight

    The rebuild

    300 ppi at full size, CMYK kept. Only real edges are sharpened; the texture stays as it was.

  3. 3

    Day 2

    The checks

    An automatic quality report on the whole mural, then a person checks the before and after at 100 %.

  4. 4

    Day 2

    Delivery

    21 files on a private download link, less than 24 hours after the call.

Today the same job runs through our production tool in 2 h 25 min end to end, with under 15 minutes of compute.

21 files delivered

What the shop received

About 7 GB on a private download link, sorted into folders with a delivery guide.

  • Print masters

    • TIFFCMYK, 300 ppi, trimmed
    • TIFFCMYK, 300 ppi, 2 in bleed

  • Print-ready PDF

    • PDFPDF/X-4, trimmed
    • PDFPDF/X-4, 2 in bleed

  • Layered file

    • PSBPhotoshop, CMYK, 2 in bleed

  • Panels for a 54 in roll

    • PDFPanel 1 of 3
    • PDFPanel 2 of 3
    • PDFPanel 3 of 3
    • PDFPanel layout

  • Proofs

    • PNGBefore and after at 100 %
    • PNGSide by side with an AI upscaler

  • Screen versions

    • JPGPreview
    • PNGsRGB, 2,400 px
    • PNGsRGB, 6,000 px

  • Vector extract

    • SVGVector
    • PDFVector, CMYK
    • PNGPreview

  • Guides and checks

    • PDFDelivery guide
    • MDDelivery guide, plain text
    • CSVFile list
    • TXTTest figures

Quality checks

Automatic quality check, whole mural
Pass
Stray dots or halos, whole mural
0.11 % (limit 0.5 %)
Average ink shift per channel, whole mural (C, M, Y, K, out of 255)
0.01, 0.00, 0.10, 0.70
Edge sharpness, six before and after areas
1.82 px, 61 % of edges under 2 px
Made-up detail, comparison areas
0.0 %
Print files re-checked with an independent file reader
10 files, 0 problems

What we tell shops up front

  • A small file only holds so much detail. Up close at 300 ppi, areas without hard edges stay soft, whatever the method. We say this before quoting.
  • For sharp artwork like text and flat graphics, we vectorize instead: the edges come out cleaner.

Got a file production turned down?

Send it with the final size. You get a quote within one business day, with the delivery date.

Request a quote See done-for-you plans

Prefer to do it yourself? See shop plans

Client name and artwork kept private. The images on this page are diagrams, not the customer's file.

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