How to Prepare Design Files for UV Flatbed Printing

Prepare a UV flatbed file at final size, preserve vectors where useful, supply adequate raster resolution for the viewing distance, define white and varnish intent, and include a clear origin and printable boundary. The RIP and printer determine the final spot-color names, layer order, choke and trapping rules, so confirm them before production.

(Last modified date: September 11, 2026)

Start with a production brief

• Finished object and printable area
• Final dimensions, orientation, bleed or no-bleed requirement
• Front-surface or reverse printing
• Substrate color, transparency and surface finish
• CMYK, white, varnish, primer or texture layers
• Fixture origin, number-up layout and variable data
• Viewing distance, color tolerance and durability requirement

Which file format should you supply?

The receiving RIP—not a generic rule—determines which PDF standard and live effects are safe.

Resolution should follow final size and viewing distance

Place raster images at the finished dimensions before judging effective resolution. More pixels do not recover blur, compression damage, or an out-of-focus source. Small text, barcodes, fine lines and white underbases also need a production proof because mechanical dot placement and substrate texture can limit usable detail.

How should white ink be defined?

White may be an underbase, overprint, selective highlight, flood layer, or part of a day/night stack. Use the spot-color name and object attributes required by the RIP. Confirm whether the RIP generates white automatically from transparency or expects a separate vector layer.

Include a small choke or spread only when the tested workflow requires it. An arbitrary trap can create halos or expose the substrate.

Varnish and texture need their own artwork logic

Separate gloss, matte, spot varnish, and raised texture from CMYK. Avoid tiny isolated varnish details that the printer cannot register consistently. Define the number of build layers, maximum relief, tactile areas and no-print zones. Varnish appearance depends on the substrate, color beneath it, layer thickness and curing.

Run a preflight before sending the job

1. Confirm final dimensions and units.
2. Package or embed links and fonts as agreed.
3. Inspect transparency, overprint and spot-color names.
4. Remove hidden objects and unintended backgrounds.
5. Check white and varnish separations individually.
6. Add a proof showing intended layer order and finished appearance.
7. Archive the approved RIP-ready version separately from the design master.

Send files that produce a useful sample and quote

Provide the artwork, substrate, object dimensions, printable area, layer stack, quantity, required output, tolerance and durability test. Send AndresJet a representative file and object specification so the team can assess fixture, ink, RIP and printer configuration rather than quote from artwork alone.

Frequently Asked Questions

Should UV artwork be CMYK or RGB?

Follow the provider’s color-managed workflow. The correct input space depends on the RIP policy, profile and production condition.

Do I need a separate white layer?

Sometimes. Some RIPs generate white from transparency, while others use a named spot-color object. Confirm the exact workflow.

Can I use the same file for front and reverse printing?

Not without checking orientation, layer order, white placement and viewing side. Reverse printing often needs a different stack and mirroring decision.

Sources

• ICC profile format introduction
• Adobe PDF print production overview