Buyer guide · Print files
Which proof should be used for custom packaging?
Use structural blanks for fit, digital proofs for content and layout, and process or press samples when material, colour and finishing need closer production evidence.
Submit project requirements
Checklist
Files and references to prepare
- Proof purpose
- Use case
- Colour target
- Finishing specification
- Target quantity and SKU allocation
- Approval sample and decision owner
- Required date and Mainland China delivery point
- Change and repeat-order record
Prepress control
Four checks before releasing artwork
Proof purpose
State whether the proof approves structure, layout, colour direction, material or finished process because one proof rarely confirms everything.
Use case
Separate retail display, e-commerce delivery, gifting, storage and transport needs because they create different performance priorities.
Colour target
Use an approved physical reference, Pantone target or measurable tolerance and define the viewing condition for approval.
Finishing specification
Define location, area, gloss, texture, registration and acceptable variation for every foil, varnish, emboss or lamination effect.
Execution method
Four actions from RFQ to production
Use the production dieline
Place artwork only after the final structure and dimensions are confirmed.
Create a preflight report
Flag missing fonts, low-resolution images, colour spaces, overprint and finishing layers.
Approve the right proof
Match proof type to the question being approved: content, structure, colour or finish.
Archive the released package
Keep the final PDF, source assets, version record and approval together.
FAQ
Questions buyers often ask
Which proof should be used for custom packaging?
Use structural blanks for fit, digital proofs for content and layout, and process or press samples when material, colour and finishing need closer production evidence.
What should be written in the specification?
At minimum, define Proof purpose, Use case, Colour target, Finishing specification, then link quantity, sample, timing, inspection and the approved revision.
Is a physical sample needed?
A decision involving structure, material, colour, finish, assembly or use performance normally needs a physical sample matched to that question; a screen proof cannot approve everything.
Can the previous standard be reused for a repeat order?
Reuse a controlled standard only when files, material, structure, supply chain and use conditions remain unchanged. Record every change and decide whether resampling or reapproval is required.
Continue building the procurement specification