Reference library
Bleed Print Size
Print bleed is the extra artwork beyond the trim edge. A common US setup is 0.125 in per side; many metric printers use 3 mm.
Last checked: 2026-05-01
How we calculate this
Methodology and source handling
We calculate pixel dimensions from the visible size values, aspect ratios, DPI/PPI formulas, and source notes on this page.
Quick answer
Copy-ready answer
Add 0.125 in bleed on every side for many US print jobs. That adds 0.25 in to the total width and 0.25 in to the total height.
Dimensions and specs
| US bleed default | 0.125 in per side | |
|---|---|---|
| Metric equivalent | 3.175 mm per side | |
| Common metric default | 3 mm per side | |
| Canvas formula | Full bleed = trim + bleed x 2 | |
| US Letter with bleed | 8.75 x 11.25 in | |
| A4 with 3 mm bleed | 216 x 303 mm |
Pixels
Pixel dimensions by DPI
| DPI / PPI | Width | Height | Use |
|---|---|---|---|
| 0.125 in at 300 DPI | 38 px | 38 px | Bleed added per side, rounded from 37.5 px |
| 0.25 in total at 300 DPI | 75 px | 75 px | Total extra pixels across width or height |
| 3 mm at 300 DPI | 35 px | 35 px | Metric bleed per side, rounded |
| 0.125 in at 150 DPI | 19 px | 19 px | Large-format per-side bleed equivalent |
Formula
How to calculate this size
Convert physical size to inches, then multiply each side by the target PPI.
Match the target aspect ratio before exporting to avoid unexpected crop or padding.
Add bleed to both sides of each dimension before calculating the final canvas.
Common mistakes
Avoid these print setup mistakes
If artwork reaches the edge, add bleed before export so small cutting shifts do not leave a white border.
Keep names, prices, QR codes, and calls to action inside the safe area, not directly on the trim line.
Close-viewed print usually needs 300 DPI; large signs and banners can use lower effective PPI when viewed from farther away.
Compare
Compare Bleed Print Size
Open a curated comparison or send both sizes into the compare tool with a fragment URL.
In US commercial printing, 0.125 in per side is a common bleed value. In metric workflows, 3 mm is common, while 0.125 in converts to 3.175 mm. Safe area is different from bleed: bleed extends outward, while safe margin keeps important text and logos inward from the trim.
Workflow
Use Bleed Print Size in a finished file
Set the finished product size before adding bleed or safe margin.
Extend backgrounds past trim and keep text inside the safe area.
Export PDF or raster files at the requested PPI and check crop marks before handoff.
Related
Related pages and tools
Same branch
Nearby pages
FAQ
Common questions
What is bleed in printing?
Bleed is extra artwork that extends beyond the finished trim edge. It is cut off after printing so edge-to-edge designs do not show white slivers.
How much bleed should I add?
A common US print bleed is 0.125 in per side. Many metric printers use 3 mm. Always follow the printer template if it gives a different value.
Is bleed the same as safe area?
No. Bleed extends artwork outward past the trim. Safe area keeps important text and logos inward from the trim.
How do I calculate full bleed size?
Add twice the bleed amount to both width and height. For example, 8.5 x 11 in with 0.125 in bleed becomes 8.75 x 11.25 in.
Do all print files need bleed?
Only edge-to-edge artwork needs bleed. A file with a white border or content safely inside the trim may not need bleed, but printer requirements still apply.
References
Sources and references
Commercial print dimensions are checked against reputable print-provider references. Bleed guidance follows Adobe and printer setup recommendations; final requirements should be confirmed with the printer.
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Adobe InDesign print bleed guidance
Used for bleed, crop-mark, and print setup guidance.
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VistaPrint: business card dimensions
Used for common business card trim, bleed, and pixel setup guidance.
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UPrinting: print sizing tips
Used as a commercial print reference for common flyer, brochure, rack card, booklet, banner, and catalog sizes.
Last checked: 2026-05-01