Before sending artwork to a printer, check more than whether the PDF opens. Confirm that it is the approved version, prepared for the intended production process, and accompanied by the information the printer needs. A practical checklist links each check to a specification and an owner. That makes unresolved issues visible before someone treats the file as authorization to print.
This guide covers existing artwork and packaging files, with an emphasis on preparation and handoff. It is not a universal export preset: the printer’s instructions determine the technical values for the job. If your files need professional correction, the COLONFILM print-ready file service offers defined packages that can be assessed against the checklist below.
Print-ready file checklist: start with the job specification
Ask for written production requirements before changing the file. Confirm the product, finished size, material, printing method where relevant, and intended finishing. For packaging, obtain the current approved dieline from the printer or converter. Record the version of that template. An old structural file can make otherwise careful artwork preparation unsuitable for the actual order.
Also confirm delivery instructions: file format, requested PDF standard or preset, color requirements, marks, page arrangement, and any naming rules. Do not assume the settings from your last printer apply to this one. The useful question is not whether an export option sounds professional, but whether it matches the workflow that will receive and produce the file.
Step 1: identify the final artwork and its source files
Choose one authoritative version and set aside the ambiguity of files named final, final-new, or final-approved-again. Record the product reference and revision. Collect the native document, linked assets, and any fonts you may legally supply. If only a PDF is available, state that clearly because some changes may be harder or require reconstruction.
Check the content before technical preparation. Names, addresses, dates, prices, product variants, and approved copy should be correct. Preflight software does not know which phone number your company intended to use. Assign that review to someone who knows the content. For packaging, ensure the responsible person has approved required product information separately from the artwork’s technical setup.
Step 2: check size, trim, bleed, and placement
Compare the document’s dimensions and page arrangement with the printer’s specification. Confirm orientation and whether the file should contain single pages, spreads, or a supplied layout. Check that content intended to reach an edge is prepared appropriately for finishing and that essential information remains in the agreed safe area. Use the printer’s values rather than applying a universal margin.
Adobe’s guidance on setting print bleed explains the role of extending artwork beyond the trim boundary. Treat that as a production concept, not a replacement for the job specification. Adding a bleed value at export does not by itself create usable artwork where the original design ends at the cut line.
Step 3: inspect fonts, images, and linked material
Confirm that the correct assets are present and that the text has not changed through substitution or missing resources. Evaluate images at their intended placed size, using the printer’s quality requirements. A file’s nominal resolution is not enough information if the image has been enlarged substantially. Ask for better source material when the existing asset cannot support the intended use.
Do not treat every warning as something to fix automatically. A correction can affect appearance or editability, so understand the consequence before applying it. Adobe’s InDesign preflight guidance describes configurable checks for document problems. The person preparing the file still needs to decide which findings matter for this particular output and inspect the result after changes.
Step 4: confirm color handling and special production elements
Use the printer’s requested color workflow and identify intentional spot colors or finishing elements. Do not convert everything indiscriminately if the job depends on separate production instructions. Confirm how varnish, foil, white ink, or other special elements should be represented when relevant. The printer or converter should supply the naming and setup requirements for its process.
Review separations and overprint behavior where the job calls for them. Adobe’s output preview documentation describes tools for examining output conditions and separations. Such inspection helps identify file behavior; it does not make a monitor a physical press proof. If color is critical, agree the appropriate proof and approval process with the production partner.
Step 5: verify the dieline and each packaging SKU
For packaging, match the artwork to the approved dieline and confirm which elements are structural instructions rather than printed content. Review panel orientation and the relationship between text, folds, and joins with the production partner where needed. Do not make structural changes casually to accommodate a design. A new dieline version should trigger review of affected artwork.
Create a SKU table with one row per variant. Include the product name, reference, language, size, approved copy version, barcode data where applicable, and output filename. Shared design makes it tempting to duplicate files quickly, but variant-specific details need independent checking. A technically valid file can still be the wrong artwork for the product being ordered.
Step 6: define barcode checks and proof responsibilities
Confirm who supplies and approves the encoded data and which barcode requirements apply to the intended use. File-level inspection and verification of a printed symbol are different tasks. GS1’s barcode implementation guidance discusses production and quality considerations. Do not describe a visual check or phone scan as formal verification of the finished printed code.
Specify what a proof report means in the engagement. It may document a file review or an agreed proofing stage; it should not silently imply a physical contract proof, laboratory certification, or approval of the entire manufacturing run. Ask who reviews the evidence, who accepts any limitations, and who has authority to release the job to production.
Prepress handoff checklist: who checks what?
| Item | Evidence to keep | Responsible review |
|---|---|---|
| Production requirements | Current printer specification and dieline | Printer or converter confirms requirements |
| Content and variants | Approved copy and SKU table | Client’s designated content owner |
| Technical file preparation | Final export and findings report | Prepress provider within agreed scope |
| Proof and release | Agreed proof record and approval | Named client and production decision makers |
This division is a practical working arrangement to agree, not a universal allocation of legal responsibility. The important point is that no essential decision is left to assumption. If the printer corrects something after handoff, obtain the relevant updated file or proof for review according to the agreed process. Otherwise, the client may approve one version while another goes into production.
How much does print-ready file preparation cost?
Cost depends on file condition, the number of variants, production complexity, and whether missing material must be rebuilt. As a broad budget frame, limited correction may involve hundreds of dollars, while wider packaging work can require more and potentially several thousand. These are general categories rather than a measured market average. Ask for a quote based on the actual files and specification.
COLONFILM’s BASIC package is $190 USD for one print file checked and fixed for bleed, CMYK, fonts, and resolution, plus a preflight report. STANDARD is $390 USD for packaging on a dieline, up to 3 SKUs. PREMIUM is $690 USD for up to 8 SKUs plus barcode, spot color, and proof report work. Select by the necessary work, not simply the largest variant allowance.
These prices describe file preparation, not the print run, shipping, structural engineering, or regulatory review. Confirm whether your particular correction needs replacement assets or reconstruction outside the defined scope. Also clarify report interpretation and delivery formats. An explicit scope is more useful than assuming every issue found during inspection can be repaired from the same original file.
How to prepare the prepress brief and schedule
Send the printer’s current instructions, the chosen artwork version, source files, approved copy, and a list of required outputs. Add the dieline and SKU table for packaging. Identify special finishes and any already approved color references. State the production deadline and the time available for your review. A provider cannot plan accurately from a print date alone if critical source material is missing.
Suggested production windows of 2–3, 4–5, or 6–8 days can frame a prepared assignment according to scope and confirmed availability. They do not include a printer’s manufacturing or shipping schedule. Leave time to inspect the final export and resolve any remaining issue. If a specification changes, assess whether the files need another check before treating the earlier report as current.
When to hire COLONFILM for print-ready files
COLONFILM is the studio of David Colón and Flor in Zaragoza, Spain, designing since 2010. It uses AI agents supervised by a person. Its prepress service fits a defined correction or packaging preparation assignment based on existing artwork and confirmed production requirements. It does not turn a file report into a certificate or guarantee every aspect of the manufactured result.
If you are comparing providers, read how to choose a print-ready file and prepress service. When your specification and file inventory are ready, assess the COLONFILM prepress packages. A clear handoff lets the provider focus on the actual problems and gives your team a concrete basis for reviewing the delivery.
Close the job with a traceable approval
At the end of the review, identify the exact filename and revision being approved. Record any agreed limitation and make sure the printer receives the same version your team inspected. If someone supplies a replacement after approval, do not assume the previous checks still apply without examining what changed. This simple handoff discipline is especially useful when several variants look almost identical. It keeps the technical report, content approval, and production file connected, giving everyone a practical way to resolve questions without relying on memory or on whichever attachment happens to be newest.
FAQ
Should I always use the same bleed value?
No. Use the value and artwork requirements confirmed by the printer for the specific job.
Does a clean preflight report mean the content is correct?
No. It reflects configured technical checks. Names, copy, and variant accuracy still need content review.
Can I send only a PDF?
You can provide it for assessment, but some corrections may require native files or replacement assets.
Is a proof report a physical print proof?
Not necessarily. Agree exactly what the report and proofing stage cover before commissioning the work.
What should accompany packaging files?
Provide the approved dieline, printer requirements, authorized content, SKU table, and clear version and approval information.