What Is 3mm Bleed and Why Does Printing Need It?
Bleed is extra artwork outside the final cut size. A common requirement is 3mm on each side so background colours and images still reach the edge after normal trimming variation.
For current specifications, turnaround guidance and quotation details, see our print-ready artwork guide page.
Bleed is outside the finished size
If an A5 flyer finishes at 148 × 210mm, artwork with 3mm bleed extends beyond that trim line. The extra area is removed during finishing.
For production planning, pair these file checks with our print-ready artwork guide and printing services in Singapore.
Why white lines appear without bleed
Cutting is precise but not infinitely exact. If the background stops exactly at the trim line, a tiny shift can reveal unprinted paper at the edge.
Do not move important text into the bleed
Bleed is sacrificial. Logos, phone numbers and important content should stay inside the safe area, not in the extra edge area.
A practical preflight before you send the file
Open the exported PDF and inspect it as though you were the printer receiving it for the first time. Confirm the page size, page count and orientation, then zoom into photographs, logos and small text. Check that backgrounds intended to reach the edge extend into bleed while important content stays inside the safe area. Verify all phone numbers, email addresses, prices, dates, licence information and QR destinations. If the piece will be folded or bound, confirm that panel order and binding margins match the production specification. Keep only one clearly named final file in the approval message. This simple preflight prevents many avoidable reprints and is especially valuable when the job has an urgent deadline.
What to send when requesting a quotation
For a useful quotation, send the finished size, paper or material, printing sides, quantity, finishing requirements, print-ready artwork if available, required date and delivery location. If any item is still undecided, explain how the printed piece will be used so a suitable specification can be suggested. For an urgent job, include the exact time by which the completed item must be collected or delivered. This avoids quoting a specification that cannot realistically meet the deadline.
See the complete QPS file-preparation checklist for bleed, safe margin, colour and resolution.
Useful next steps: Artwork Guide · Printing Services Singapore
