sourcing
Handing Off Packaging Artwork Cleanly to a Printer
Prepare packaging artwork for printer handoff: confirm file specifications, preflight PDFs, document spot colors and dielines, and track proofs and revisions.
A clean artwork handoff is a controlled package, not a single PDF. Send the printer the agreed file format, a preflight report, a color and spot ink list, dieline and layer notes, proof instructions, and a version log. Confirm the converter's own requirements for marks, page boxes, bleed, and proof type before you upload. Keep one source of truth and label every file. The goal is to make the printer's questions answerable before prepress starts, not to guess what their workflow needs.
Begin with the printer's handoff brief
The handoff starts before you export a PDF. Ask the converter for its current artwork specification and keep that reply with the job file. The brief should cover file format and PDF/X level, bleed, page boxes, printer marks, dieline layer naming, spot color naming, proof type, and upload location. A generic checklist is a starting point, not a substitute for the printer's instructions.
Prepress teams may use Adobe PDF Print Engine or another renderer, and their setup governs how marks, layers, and separations are handled. Adobe documents that industry groups recommend PDF and PDF/X for exchanging packaging and label jobs, but the converter still decides which PDF/X level and settings it wants. Write the agreed settings into the job folder so everyone works from the same brief.
- File format and PDF/X level
- Bleed amount and page box setup
- Printer marks and whether they belong in a layer
- Dieline layer name and visibility
- Spot color names and reference values
- Proof type and approval route
Keep one source of truth and a version log
Use one master file per SKU and component. Name files with the SKU, component, language if relevant, and a revision number. Avoid names such as final, final2, or latest. A short version log should record who changed what, which proof was approved, and which file the printer should use. That log is more useful than a folder full of near duplicates.
When several people touch the artwork, separate the roles. One person owns the master file, one approves content, and one confirms print production details. If a change arrives after proof approval, issue a new revision and say clearly whether the previous proof is still valid. This is a communication control, not a claim about any specific software.
Preflight the PDF against the printer's checklist
Preflight means checking the file against the printer's requirements before upload. Confirm fonts are embedded, images are at the agreed resolution, transparency is handled as the printer expects, overprints are intentional, page boxes match the brief, and bleed is present. Use the converter's preflight profile if one is supplied. Do not flatten or convert content just because a generic tutorial says so.
Adobe Acrobat Output Preview can show separations and color warnings, which helps you spot an unexpected spot color or an unintended rich black on type. Adobe notes that onscreen separation preview does not verify trapping, printer marks, halftone screens, or resolution; those details are better checked with the printer using the agreed proof. Treat the preview as a diagnostic, not a proof.
- Fonts embedded, and text outlined or left live only as the printer instructs
- Images at the agreed resolution and color space
- Overprints and transparency reviewed
- Page boxes and bleed match the brief
- Spot colors named and listed
- Remove stray content and review hidden layers; retain technical layers only as agreed with the converter
Name and list every color, including black
Send a color list with the artwork. List process inks, named spot colors, varnish, white, and any finishing element that the printer needs to align with the graphics. For each named color, give the name the printer expects and the reference value it asked for. If the printer requests spectral data, supply it in the agreed format. Adobe PDF Print Engine can extract CxF data for spot colors defined with spectral values, but that does not remove the need to confirm the printer's workflow.
Keep registration black separate from rich black. Registration black is a registration mark color, not a build for artwork. Rich black is a deliberate process build, and its suitability depends on the substrate and printing condition. Ask the printer which black build it wants for small type, reverse type, and large solids. A PDF/X-4 file can carry color-managed RGB, and the printer's agreed workflow determines conversion. Digital workflows can simulate named spot colors; plate workflows may use actual spot plates. State which workflow applies to your job rather than assuming.
Control dielines, layers, and marks
A dieline is a guide for cutting, creasing, or finishing. It is not printed art. Follow the converter's instruction for whether the dieline sits on a separate layer, a separate page, or a separate file. Do not add tuck flaps, glue areas, or other structure to an open sleeve unless the converter has supplied that geometry. A simplified geometry exercise is not a manufacturable dieline.
Printer marks show page boundaries such as trim and bleed. Adobe documents that marks can be embedded in a PDF or placed in a layer, and that page boxes define trim, bleed, and art boundaries. The printer still decides which marks it wants and where. If marks are already in the native file, do not add a second set on top without checking alignment. Ask whether the printer wants marks embedded or added at output.
Prove the job with the right proof type
Ask the printer which proof or combination of proofs it will use, such as a soft proof, an imposed PDF proof, or a hard-copy contract proof. A PDF proof can support checks of content, page order, and text; color assessment depends on the agreed color-managed viewing conditions. A hard-copy contract proof can support color approval within its agreed scope, but it does not necessarily reproduce the production substrate or finishing. Ask whether a separate production-substrate sample or finishing sample is needed for those decisions. Record each proof's purpose and limitations in the handoff brief.
Record the proof approval in the version log. If the printer sends a proof with annotations, resolve each comment and state which file revision it applies to. Do not approve a proof that shows a different revision from the one in the handoff package. If the printer changes a color conversion or a spot simulation, ask for a revised proof rather than assuming the change is harmless.
A hypothetical worked example for sizing the handoff
Suppose a fictional brand, Harbor Oat, is handing off artwork for two carton SKUs. Each SKU has two language versions and three revisions in the working folder, and all panels for one SKU and language sit in a single PDF. Assume the converter has confirmed that both SKUs use the same dieline. The team plans to send one approved PDF per SKU and language, plus one shared dieline file and one shared color list. Two SKUs multiplied by two languages gives four approved artwork PDFs. Adding the dieline file and color list gives six files in this artwork subset, not the complete handoff package. Preflight reports, the version log, proof instructions, and any approval records add to that total according to the agreed brief. Working revisions stay in the archive.
For a second check, the same job uses four process inks and two named spot colors. For planning the color list only, four plus two gives six ink entries, plus one varnish entry if varnish is used, for seven entries. This is a simplified planning count, not a plate count, a separation count, or a manufacturing specification. A digital workflow may simulate the named spots, and a plate workflow may use actual spot plates. Confirm the real requirement with the converter before you describe the job as six or seven plates.
Decision table for the handoff package
Use a decision table to separate what the printer needs from what is merely useful. The table below is Teal's editorial planning framework, not a universal requirement. Adjust it to the converter's written instructions.
| Item | Send with first handoff | Send only if requested | Retain internally, even if sent |
|---|---|---|---|
| Approved PDF per SKU and language | Yes | No | No |
| Native source file | No | Yes | Yes |
| Dieline file | Yes, if supplied by converter | No | Yes |
| Color and spot ink list | Yes | No | Yes |
| Preflight report | Yes | No | Yes |
| Proof approval record | Yes | No | Yes |
| Working revisions | No | No | Yes |
| Printer marks | Follow converter | No | No |
Practical checklist before you upload
Run this checklist as a final gate. It is a process aid, not a certification and not a guarantee that the file will print as intended. The printer's prepress team still has to confirm the job against its own workflow.
- The printer's written artwork brief is in the job folder
- One approved PDF exists per SKU, component, and language
- File names carry SKU, component, language, and revision
- Fonts are embedded and images meet the agreed resolution
- Page boxes, bleed, and marks match the brief
- Dieline is on the agreed layer or in the agreed separate file
- Spot colors are named and listed with the requested reference values
- Registration color is confined to agreed printer marks, not artwork; artwork black builds follow the printer's instructions
- Overprints and transparency have been reviewed
- Proof type is agreed and the approval is logged
- Upload location and contact are confirmed
- A short cover note lists every file and its purpose
Scope limits and what this guide does not decide
This guide covers the editorial process of preparing and handing off artwork. It does not set legal, regulatory, food contact, hazardous goods, or channel requirements. It does not decide whether a specific substrate, ink, coating, or finish is suitable for a product. It does not replace the converter's prepress review, a signed proof, or any required testing. If your project involves restricted products or regulated claims, build a review workflow with the appropriate specialists rather than treating this checklist as a compliance determination.
Teal does not charge setup, plate, or tooling fees. Other suppliers may charge those fees, and their quotes should be read line by line so you know what each fee covers. Teal quotes product prices per project. Standard MOQ is 50 units, and specialty rigid packaging has an MOQ of 100 units. Those commercial details do not change the artwork handoff steps above.
Frequently asked questions
These questions address common handoff decisions without replacing the printer's instructions.
Questions about artwork handoff
Should I send a PDF or the native design file?
Send the approved PDF that the printer asks for, and keep the native file internal unless the printer requests it for a specific reason. A native file can be useful for a minor edit, but it also introduces font, link, and layer variables. If you send native art, say which file is the master and which PDF it produced.
Can I use RGB images in a packaging PDF?
PDF/X-4 can carry color-managed RGB, and the printer's agreed workflow determines conversion. Do not convert RGB to CMYK just because a generic rule says so. Ask the printer whether it wants RGB, CMYK, or a mixed workflow, and confirm which profile it will use for conversion. Then check the proof against that decision.
Do I need to include printer marks and a dieline layer?
Follow the converter's instructions. Adobe documents that printer marks show page boundaries and can be embedded in a PDF or placed in a layer, but that does not mean every printer wants them embedded. A dieline may belong on a separate layer, a separate page, or a separate file. Ask before you add marks or change layer visibility.
Sources and further reading
- Adobe PDF Print Engine for Packaging Printing: Industry associations such as the Ghent PDF Workgroup recommend PDF and PDF/X for exchanging packaging and label jobs.
- Printer marks and hairlines (Adobe Acrobat Pro): Printer marks show document box boundaries such as trim and bleed, and marks can be embedded in a PDF or placed in a layer.
- Previewing output (Adobe Acrobat Pro): Output Preview can show separations and color warnings, but it does not preview trapping, printer marks, halftone screens, or resolution, which are better verified with the printer using proofs.
- Adobe PDF Print Engine for Seamless Packaging Experience: PDF Print Engine accurately emulates spot colors. Adobe PDF captures and conveys finishing elements such as varnish and foil, which must align with the printed graphics.