Print Bleed, Trim and Safe Area: Sizes and Setup
Bleed is extra artwork that runs past the finished edge so the cutter never leaves a white sliver; trim is the finished size; the safe area is the inner zone where text and logos belong. Add the bleed to every side: a 3.5 by 2 inch card with 0.125 inch bleed becomes a 3.75 by 2.25 inch document.
The catch is the bleed figure itself. One eighth of an inch and 3 mm are both called standard, yet they differ by 0.175 mm per side, some printers ask for more, and two popular design apps have no document bleed setting at all. The figure that counts is the one on your printer's template.
Three Boxes, One Sheet
Picture the finished piece as three nested rectangles.
Trim is the size the customer holds: the business card, the A5 flyer, the poster. Every other number in a print job is measured from this line. In most apps the document's page size is the trim size, and the bleed sits outside it.
Bleed is the band outside the trim. Anything that should touch the edge of the finished piece (a background colour, a full-page photo, a stripe) has to continue across the trim line and into this band. Adobe's Illustrator documentation describes bleed as artwork that falls outside the crop area and trim marks, included "as a margin of error" so that ink still reaches the edge after the page is trimmed (Illustrator printer's marks and bleeds). The band is printed and then cut away. Nobody ever sees it on a correct job; its only purpose is to be wasted.
Safe area (also called the live area or type area) is a zone inside the trim. Text, logos, phone numbers and faces stay in here, so that if the cut drifts inward they are not clipped and they do not sit uncomfortably close to the edge. Canva's help centre puts the division plainly: the bleed is where you "extend backgrounds here, not text", and its margins exist to keep important content "safely away from the edge" (Canva margins, bleed and crop marks help).
A fourth zone appears in professional layout apps: the slug. InDesign's documentation defines it as "an area outside the page and bleed that contains printer instructions or job sign-off information", and like bleed it is discarded when the document is trimmed (InDesign printer's marks and bleeds). You only need a slug if your printer asks for job notes on the sheet.
Why does any of this exist? Because cutting stacks of paper is a mechanical process, and the blade does not land on the same hairline every time. Bleed covers drift outward from the art; the safe area covers drift inward. Design for both directions and the cut can wander a little without anyone noticing.
Why There Is No Single Bleed Number
Ask five print shops for their bleed and you may get three answers. That is not because one of them is wrong. Bleed is a house specification, set by each printer's equipment and finishing process, and design apps reflect that by letting you type any value.
The two conventions you will meet most often:
- 0.125 inch (one eighth of an inch) per side, common with printers working in inches. Canva, which prints products itself, adds exactly this: "0.125 inches (3.175 mm) on all sides for products that trim or get cut", and the value cannot be changed in the editor.
- 3 mm per side, common with printers working in metric sizes.
Adobe's InDesign how-to on setting print bleed treats the two as one convention: "Bleed values of .125 in (3mm) are standard, although some print providers may require a larger bleed area" (Adobe InDesign: set print bleed). They are close but not identical. One eighth of an inch is 3.175 mm, because an inch is 25.4 mm (W3C CSS Values, absolute lengths), so 25.4 ÷ 8 = 3.175. The difference is 0.175 mm per side. Whether a printer accepts the other value is their call, so ask; what is certain is that a template built at one will not match a die line drawn at the other.
Other numbers exist too. Illustrator's own help page says that "a press bleed (that is, an image that bleeds off the edge of the printed sheet) should be at least 18 points" and caps the bleed setting at 72 points. With 72 points to the inch (1pt is 1/72nd of an inch in the CSS Values spec), 18 points is 0.25 inch, double the common convention, and the 72 point maximum is one full inch. Large-format work, packaging, books with wraps and anything die cut can need more again. InDesign accepts bleed values from 0 to 6 inches when you override the document setting at print time.
The rule that settles every disagreement: the printer's spec sheet or template wins. Treat 0.125 inch and 3 mm as sensible defaults for a first draft, then confirm before you export. If a printer's PDF template is available, build on it rather than on any table, including the one below.
Document Sizes With Bleed, Worked Out
The arithmetic is short. Bleed goes on all four sides, so each dimension grows by twice the bleed:
Document width = trim width + 2 × bleed, and the same for height.
At 0.125 inch, that is +0.25 inch per dimension. At 3 mm, +6 mm. Converting uses 25.4 mm per inch.
The ISO sizes come from ISO 216, the standard for trimmed A and B series paper sizes (ISO 216:2007 catalogue entry). The ISO catalogue lists the 2007 edition as current, last confirmed in 2021 and under systematic review again from July 2026; the dimensions themselves sit behind ISO's paywall, so we took them from the W3C CSS Paged Media specification, which defines its A4 keyword as "the size of ISO A4 media: 210 mm wide and 297 mm high" and A5 as 148 mm by 210 mm (W3C CSS Paged Media Level 3). The same spec defines US Letter as 8.5 by 11 inches. ISO's own abstract notes the standard "does not necessarily apply to newspapers, published books, posters", which is one more reason to check a printer's sizes for anything outside office paper.
The business card, postcard and poster sizes below are common US trade sizes rather than standardised ones, so treat them as examples and swap in your printer's exact trim.
| Product (trim) | Trim in mm | Document at 0.125 in bleed | Document at 3 mm bleed |
|---|---|---|---|
| US business card, 3.5 × 2 in | 88.9 × 50.8 | 3.75 × 2.25 in (95.25 × 57.15 mm) | 94.9 × 56.8 mm (about 3.736 × 2.236 in) |
| US Letter, 8.5 × 11 in | 215.9 × 279.4 | 8.75 × 11.25 in (222.25 × 285.75 mm) | 221.9 × 285.4 mm (about 8.736 × 11.236 in) |
| A4, 210 × 297 mm | 210 × 297 | 216.35 × 303.35 mm (about 8.518 × 11.943 in) | 216 × 303 mm |
| A5, 148 × 210 mm | 148 × 210 | 154.35 × 216.35 mm (about 6.077 × 8.518 in) | 154 × 216 mm |
| Postcard, 6 × 4 in | 152.4 × 101.6 | 6.25 × 4.25 in (158.75 × 107.95 mm) | 158.4 × 107.6 mm (about 6.236 × 4.236 in) |
| Poster, 24 × 36 in | 609.6 × 914.4 | 24.25 × 36.25 in (615.95 × 920.75 mm) | 615.6 × 920.4 mm (about 24.236 × 36.236 in) |
Three worked lines, so you can check the method:
- A4 at 3 mm: 210 + 6 = 216 mm wide; 297 + 6 = 303 mm tall.
- A4 at 0.125 inch: 0.125 × 25.4 = 3.175 mm per side, so 210 + 6.35 = 216.35 mm and 297 + 6.35 = 303.35 mm.
- Business card at 3 mm: 3.5 × 25.4 = 88.9 mm, plus 6 = 94.9 mm; 2 × 25.4 = 50.8 mm, plus 6 = 56.8 mm.
From document size to pixels
Raster files need one more step: multiply the document size, bleed included, by the target resolution. The formula and the resolution conventions are covered in our DPI vs PPI resolution guide; here it is applied to the bleed sizes.
- Business card at 0.125 inch bleed, 300 PPI: 3.75 × 300 = 1125 pixels wide, 2.25 × 300 = 675 pixels tall.
- Poster at 0.125 inch bleed, 150 PPI: 24.25 × 150 = 3637.5 and 36.25 × 150 = 5437.5. Round up to whole pixels: 3638 by 5438.
- A4 at 3 mm bleed, 300 PPI: 216 ÷ 25.4 = 8.504 inches, × 300 = 2551.2, so 2552 pixels; 303 ÷ 25.4 = 11.929 inches, × 300 = 3578.7, so 3579 pixels.
Forget the bleed at this step and the print shop has two bad options: stretch your art to fill the bleed (softening it and pushing text toward the edge) or trim into your design.
What about the safe area size?
No standard defines it, and none of the vendor documentation we read gives a universal figure. Canva fixes its margins and runs a print check of its own; other printers publish a number on their templates. As an illustration of the arithmetic only: if a printer specified a safe inset of 0.125 inch from trim, the live area of a 3.5 by 2 inch card would be 3.5 − 0.25 = 3.25 inches by 2 − 0.25 = 1.75 inches. So from the outer edge of the bleed document, the distance to the safe line is bleed plus inset: 0.25 inch in that example. Use the printer's figure when you have one.
Setting Up Bleed in Six Apps
The steps below come from each vendor's own help pages. Menu names drift between versions, so if a label differs slightly in your copy, the help page linked for that app is the place to check.
InDesign
InDesign handles bleed natively and treats it as a document property. When you create a file, the New Document dialog has a Bleed and Slug section where you "specify the position of the bleed and slug along each side of the document", with a chain icon to link or unlink the four sides (InDesign: create documents). Adobe's how-to adds that you can type the value in any unit, "0.125 in or 3 mm even if your document uses picas or something else", and InDesign converts it.
For an existing document, the bleed and slug live in the Document Setup dialog. To see them, use the Bleed Preview mode at the bottom of the toolbox. On facing-page documents the left and right fields become Inside and Outside, so the spine edge can take a different value from the outer edge.
At export, the Adobe PDF dialog has a Marks and Bleeds section that "specifies printer's marks and the bleed and slug areas" (InDesign Adobe PDF options). The option to watch is Use Document Bleed Settings: leave it on and the PDF picks up the bleed you set in the document. If you untick it, you can type different values; the print dialog allows 0 to 6 inches.
Illustrator
Illustrator also sets bleed at the document level, in the New Document dialog. When you print, the Marks & Bleed panel of the Print dialog offers Use Document Bleed to pull in that setting, or Top, Left, Bottom and Right fields with a link icon if you want to override it. The documented range is 0 to 72 points. For PDF output, set the save dialog to use the document bleed, then open the resulting PDF and confirm that its page is larger than the trim.
One Illustrator detail is easy to miss. If you turn on trim marks, Adobe advises entering "an Offset value greater than the Bleed value", otherwise the marks are drawn on top of the bleed artwork.
Photoshop
Photoshop has no document bleed setting. A Photoshop document is a rectangle of pixels, and the bleed has to be part of that rectangle. Two ways to get there:
- Best: create the document at the bleed size from the start, using the table above (for a business card at 300 PPI, 1125 by 675 pixels), and drag guides to the trim and safe lines.
- Rescue: for a file already built at trim size, use Image > Canvas Size. Tick Relative and enter the amount to add, which Adobe describes as entering "the amount you want to add or subtract from the image's current canvas size" (Photoshop: adjust crop, rotation and canvas size). For 0.125 inch bleed, add 0.25 inch to width and height. Click the centre square of the Anchor grid so the new canvas is split evenly around the image.
The catch with the rescue route: the new canvas is filled with a flat colour (foreground, background, white, black or gray, from the Canvas Extension Color menu) or left transparent. It is not your artwork. A photo or gradient that should run off the edge now ends in a hard line at the trim, which is exactly what bleed was supposed to prevent. You still need to extend the image into the new band by retouching, cloning, or rebuilding the background.
Affinity Publisher 2
Affinity Publisher handles bleed natively; we read only the Publisher 2 help for this guide, so check the Designer and Photo help separately if you work in those. The Publisher help describes the setup: "From the File menu, click New", then "Select the Bleed tab" and set Left, Right, Top and Bottom, or Inner and Outer on facing pages, with a link symbol to keep all four equal (Affinity Publisher: setting bleed). To change it later, open Document Setup and use the Bleed tab; View > Show Bleed draws the guides.
The export step is the one people miss. Affinity's PDF export has an Include bleed checkbox, described as including "any Bleed set in Document Setup" in the PDF (Affinity Publisher: publishing PDF files). For professional output the help says to choose a PDF/X preset and then check Include bleed. The same page's preset comparison lists printer's marks as off by default for the press-ready presets, so turn crop marks on yourself if the printer wants them. Which PDF/X version to choose is its own decision, covered in our sibling guide on PDF/X-1a vs PDF/X-4 exports.
Canva
Canva has bleed, but it is fixed. Turn it on under File > Settings > Show print bleed, and a dashed border appears near the edges; Canva says this "bleed margin is fixed based on print production standards and cannot be adjusted", and that it adds 0.125 inch (3.175 mm) per side on products that are trimmed. The feature is not available in Canva Docs.
Crop marks come at download time. The sequence in Canva's help: add bleed, then Share > Download, choose PDF Print, and tick Crop marks and bleed. The marks appear only in the exported PDF, never in the editor, and their size is fixed too.
The limitation that matters: if your printer asks for 3 mm, 5 mm or a quarter inch, Canva cannot produce it. A 0.125 inch bleed is slightly more than 3 mm, so a printer asking for 3 mm may accept it, but ask first; a printer asking for more needs a file from another tool, or their written agreement to work with what Canva gives.
Figma
Figma has no print bleed. Its official help article on export formats lists PDF output as PDF 1.7, says "Figma only supports PDF exports at 1x", that text is exported as glyphs, and that assets export using the file's colour profile (Figma: export formats and settings). It describes PDFs as suitable for "print design mockups". It mentions no bleed setting, no crop marks and no CMYK option.
The workable approach is manual:
- Build the frame at the full bleed size, not the trim size, keeping the proportions from the table (for a business card at 0.125 inch bleed, 3.75 by 2.25).
- Before designing, export a test PDF of the empty frame and check its page size in a PDF reader. Figma's help does not state how frame units map to a physical PDF page size, so this test is the reliable way to know. Resize the frame until the exported page equals trim plus twice the bleed.
- Add layout guides or thin locked rectangles at the trim line and the safe line, extend backgrounds to the frame edge, keep type inside the safe line, and hide the guides before export.
- Export the frame as PDF, then tell the printer in writing that the file includes bleed and give the trim size, because the PDF carries no crop marks to show where to cut.
Third-party plugins add bleed and marks to Figma exports. They are outside Figma's documentation, so test one with your printer before relying on it. Colour is the bigger issue for Figma print work; the CMYK vs RGB print colour guide explains what happens when an RGB PDF meets a press.
Which tool for which job
| Tool | Native bleed setting | Adjustable value | Crop marks on export | Sensible use for print |
|---|---|---|---|---|
| InDesign | Yes, per side | Yes | Yes, Marks and Bleeds | Multi-page and anything going to a commercial press |
| Illustrator | Yes, per side | Yes, 0 to 72 pt in Print | Yes | Single pieces, packaging art, logos |
| Affinity Publisher 2 | Yes, per side | Yes | Yes, turned on manually | Full print workflow, PDF/X presets included |
| Photoshop | No, bleed is part of the canvas | Via canvas size | Not covered here | Photo-led single pages, built at bleed size |
| Canva | Yes, toggle | No, fixed 0.125 in | Yes, PDF Print | Jobs where the printer accepts 0.125 in |
| Figma | No | Manual frame sizing | No | Mockups; final print files through another tool |
Crop Marks, Bleed Marks and the Export
Crop marks (also called trim marks) are short hairlines outside the page corners that show the cutter where the trim lines run. InDesign describes them as "fine (hairline) horizontal and vertical rules that define where the page should be trimmed". Bleed marks show the outer edge of the bleed. InDesign's marks list also includes registration marks, colour bars and page information, which are aids for the press operator; include them only if the printer asks.
Whether to include marks is a printer question, and answers differ: some instructions ask for a PDF that is exactly the bleed size with no marks, others ask for crop marks so the cut can be checked. If the instructions are silent, ask. Marks placed correctly sit outside the bleed and are cut away with it, so including them does not harm the finished piece.
The offset matters when marks are on. Illustrator's guidance, that the mark offset should be larger than the bleed, applies everywhere: marks that start inside the bleed get printed over your background and can show on the finished edge if the cut drifts.
Before sending, open the exported PDF and check three things:
- The page is bigger than the trim. A business card PDF at 0.125 inch bleed should measure 3.75 by 2.25 inches, or larger if marks are included. If it measures 3.5 by 2, the bleed was dropped at export.
- The art reaches the outer edge. Zoom into each corner. Backgrounds should run to the edge of the bleed, not stop at the trim.
- Nothing important crosses the safe line. Toggle any guides off and look at the margins as a reader would.
Colour conversion and PDF standard come next in the handoff. The print colour hub guide covers profiles and rich black; the PDF/X guide covers which preset to export.
Full-bleed black panels are where bleed and ink limits meet. See rich black versus 100K black for how to choose the black before you extend it into the bleed.
Seven Mistakes That Cause Reprints
1. Bleed added by scaling. Someone realises late that the file has no bleed and enlarges the whole design until it covers the bleed size. On a business card the two directions need different factors: 3.75 ÷ 3.5 = 1.071 across, but 2.25 ÷ 2 = 1.125 down. Scale uniformly by 112.5 percent to cover the height and the art overshoots the bleed sideways, pushing edge text into the cut; scale each direction separately and every letter and logo is distorted. Either way the design is no longer the size the client approved. Add bleed by extending the background, never by scaling the layout.
2. Thin borders around the edge. A neat 2 mm frame around a postcard depends on the cut landing exactly on the line. If it drifts by 1 mm, one side of the frame is 3 mm and the opposite side is 1 mm, and the eye catches the difference instantly. Either drop the border, make it thick enough that a small shift is not obvious, or keep it well inside the safe area so it reads as a deliberate inner frame.
3. Text in the cut zone. Body copy, URLs and fine print set to the trim edge for a "full bleed" look will be clipped on part of the run. Keep every word inside the safe line, including page numbers and legal text, which are the items people forget.
4. White hairlines at the edge. A background rectangle drawn to the trim instead of the bleed edge prints with a white sliver wherever the cut lands outside it. Snap backgrounds to the bleed guide, not to the page edge.
5. Bleed dropped at export. The document had bleed, the PDF does not. In Affinity it is the Include bleed checkbox; in InDesign the Use Document Bleed Settings option. Measuring the PDF, as above, catches this in seconds.
6. Mixing 3 mm and 0.125 inch. A template built at 3 mm with art built at 0.125 inch leaves 0.175 mm of mismatch per side. On flat jobs that rarely shows; on a die-cut shape or a box, it can push art off the die line. Pick the printer's figure and use it everywhere in the job.
7. Forgetting the bleed in pixel dimensions. A Photoshop file built at exactly 1050 by 600 pixels (a 3.5 by 2 card at 300 PPI) has no room for bleed. Build at 1125 by 675 instead. The same error shows up in designs sized from a social media template and repurposed for print, where nothing was ever meant to be cut.
Pre-Flight Checklist for Bleed and Safe Area
| Check | Pass condition |
|---|---|
| Printer's bleed figure confirmed | Written spec or template, not a guess |
| Document size | Trim + 2 × bleed in both dimensions |
| Raster resolution | Document size including bleed × target PPI |
| Backgrounds and full-bleed images | Extend to the outer bleed edge on every side that bleeds |
| Text, logos, faces | Inside the safe line on every page |
| Borders | Absent, thick, or comfortably inside the safe area |
| Export setting | Bleed included (Use Document Bleed Settings or Include bleed) |
| Crop marks | Per printer instructions; offset larger than the bleed |
| PDF measured | Page size equals the bleed size, or larger with marks |
| Mockup | Preview trimmed at trim size, not bleed size |
For the last item, a client preview should show what the customer will hold. Presenting a print mockup at bleed size makes a design look looser than it will be in hand, and the client then approves a layout they have not really seen.
If the job is part of a brand system, record the bleed and safe-area rules for each printed item in the brand guidelines document you hand to vendors so the next designer does not have to rediscover them.
Questions Designers Ask About Bleed
Is bleed 1/8 inch or 3 mm?
Both are common, and neither is a universal standard. One eighth of an inch is 3.175 mm, so the two are 0.175 mm apart per side. Adobe's InDesign how-to calls ".125 in (3mm)" standard while noting some providers need more, Canva fixes 0.125 inch, and Illustrator's help says a press bleed should be at least 18 points (0.25 inch). Use whatever the printer specifies, and default to 0.125 inch or 3 mm only when there is no spec.
Do I add the bleed to each side or to the total?
Each side. Bleed is a band around the whole page, so the document grows by twice the bleed in each dimension. A 6 by 4 inch postcard with 0.125 inch bleed is 6.25 by 4.25 inches, not 6.125 by 4.125.
Does a document need bleed if nothing touches the edge?
Not strictly. If every element sits inside the trim with a margin of white paper around it, the cut cannot expose anything you designed. Printers differ on whether they want a trim-size or a bleed-size file for such jobs, so follow the printer's template either way.
How big should the safe area be?
There is no standard figure. Printers publish their own, often on downloadable templates, and Canva applies fixed margins in its editor. As a working method, keep text at least as far inside the trim as the bleed extends outside it, then check the printer's figure, which overrides that.
Can I add bleed to a finished PDF?
Only by extending the artwork, which a finished PDF usually cannot do cleanly. Enlarging the page alone gives you white bleed; scaling the content changes the design's size. The reliable fix is to reopen the source file, extend backgrounds into a bleed area, and export again. Where the source is gone, a printer may offer to mirror or stretch the edges, which works for flat colour and poorly for photos.
Why does my printer want crop marks if they have my trim size?
Marks let the operator confirm where the trim lands on the sheet, which matters most when the PDF page is larger than the trim. Other printers ask for no marks at all and work from the trim size you state. Neither request is wrong; each printer's workflow decides it, and the instructions on their upload page or template are the answer for that job.
Next Step: Get the Colour Right Before the PDF Goes Out
A file with correct bleed can still print wrong if its colours were built for a screen. Our walkthrough of converting RGB artwork to CMYK without dull results shows why bright RGB blues and greens dull on paper and how to soft-proof before you export, which is the check that belongs right after the one you just did.
Vendor Documentation and Standards Consulted
Adobe's help pages and Canva's help centre blocked automated access during this check, so we read them through Internet Archive snapshots of the same URLs; the snapshot date is given for each.
- Adobe InDesign how-to, "Set print bleed", https://helpx.adobe.com/indesign/how-to/set-print-bleed.html (snapshot of June 23, 2023): bleed values typed in any unit, and ".125 in (3mm) are standard, although some print providers may require a larger bleed area". Checked October 22, 2026.
- Adobe InDesign User Guide, "Printer's marks and bleeds", https://helpx.adobe.com/indesign/using/printers-marks-bleeds.html (snapshot of January 31, 2026): slug definition, Use Document Bleed Settings, 0 to 6 inch override, crop mark definition. Checked October 22, 2026.
- Adobe InDesign User Guide, "Create documents", https://helpx.adobe.com/indesign/using/create-documents.html (snapshot of April 18, 2026): Bleed and Slug fields in the New Document dialog. Checked October 22, 2026.
- Adobe InDesign User Guide, "Adobe PDF options", https://helpx.adobe.com/indesign/using/pdf-options.html (snapshot of April 16, 2026): Marks and Bleeds section of PDF export. Checked October 22, 2026.
- Adobe Illustrator User Guide, "Printer's marks and bleeds", https://helpx.adobe.com/illustrator/using/printers-marks-bleeds.html (snapshot of September 6, 2026; page last updated May 24, 2023): bleed definition, at least 18 points for a press bleed, 0 to 72 point range, mark offset greater than bleed. Checked October 22, 2026.
- Adobe Photoshop User Guide, "Adjust crop, rotation, and canvas size", https://helpx.adobe.com/photoshop/using/adjusting-crop-rotation-canvas.html (snapshot of March 8, 2026): Canvas Size, Relative, Anchor, Canvas Extension Color. Checked October 22, 2026.
- Affinity Publisher 2 Help, "Setting bleed", https://affinity.help/publisher2/en-US.lproj/pages/Publishing/bleed.html, and "Publishing PDF files", https://affinity.help/publisher2/en-US.lproj/pages/Publishing/publishPDFFiles.html: Bleed tab, Show Bleed, Include bleed, PDF/X presets, printer's marks off by default. Checked October 22, 2026.
- Canva Help Center, "Use margins, bleed, rulers, and crop marks", https://www.canva.com/help/margins-bleed-crop-marks/ (snapshot of October 5, 2026): fixed 0.125 in (3.175 mm) bleed, Show print bleed, PDF Print with crop marks and bleed. Checked October 22, 2026.
- Figma Help Center, "Export formats and settings for static designs", https://help.figma.com/hc/en-us/articles/13402894554519-Export-formats-and-settings: PDF 1.7, 1x only, text as glyphs, no bleed or crop mark option described. Checked October 22, 2026.
- ISO, "ISO 216:2007 Writing paper and certain classes of printed matter: Trimmed sizes, A and B series", https://www.iso.org/standard/36631.html: edition, status, confirmation in 2021, scope note on posters. Checked October 22, 2026.
- W3C, "CSS Paged Media Module Level 3" (Working Draft, September 14, 2023), https://www.w3.org/TR/css-page-3/: A4 210 × 297 mm, A5 148 × 210 mm, Letter 8.5 × 11 in. Checked October 22, 2026.
- W3C, "CSS Values and Units Module Level 4", https://www.w3.org/TR/css-values-4/: 1in = 2.54cm, 1pt = 1/72nd of 1in. Checked October 22, 2026.
The bleed sizes in the tables are our own arithmetic from those definitions (trim plus twice the bleed, 25.4 mm per inch) and can be checked with any calculator. The business card, postcard and poster trims are common US trade sizes used as examples, not values from a standard.