Add 3 mm Bleed to PDF

Printers in the UK, Europe, India, Australia and most of the world ask for 3 mm of bleed on every side, and send back files that do not have it. Open the PDF here and it is already set to 3 mm: every page is extended 3 mm past its edge on all four sides by mirroring the artwork outwards, crop marks are drawn in the corners, and the trim and bleed boxes are written so the printer's software knows where the cut falls. Nothing inside the page moves or changes size. If your design is a plain colour or a full-page photo you can stretch it instead, and if it already carries 3 mm of bleed you can just add the marks. The preview shows page one exactly as it will be saved. Everything happens on your device, so the file is never uploaded.

How it works

Add 3 mm Bleed to PDF is a web page that does its work on your own device. The file you choose is opened by your browser, changed there and saved from there; it is never sent to a server, so there is no copy of it anywhere to delete, no queue and no waiting for an upload. Most online tools of this kind send your file to their servers and work on it there, and many keep it for a while. This one does not. There is no account, no watermark and no limit on how often you use it, and the result downloads the moment it is ready.

3 mm or 1/8 inch?

3 mm and 1/8 inch (3.175 mm) are close enough that any printer will accept either. Use 3 mm when the printer gave sizes in millimetres, which is nearly everyone outside the United States, and 1/8 inch for a US printer. Only large-format work, such as banners, usually asks for more, typically 5 mm or 1/4 inch.

What the finished file looks like

An A4 page of 210 × 297 mm becomes 216 × 303 mm of bleed area, with crop marks a little beyond that. The trim box inside the file still says 210 × 297 mm, so the printer cuts it back to A4 and the mirrored strip disappears.

When mirroring looks wrong

Mirroring reflects the outer edge of the design, which is invisible on plain backgrounds and photos but can look odd where text or a hard shape runs right to the edge. In that case either stretch the page by 3 mm instead, or go back to the design file and extend the artwork properly.

Questions

Is 3 mm bleed enough?

For business cards, flyers, leaflets, posters and books, yes; it is the standard figure in the UK, Europe, India and Australia. Banners and large signs are often cut less precisely, so their printers ask for 5 mm or more.

Will the text or pictures move?

No. The page is extended outwards by mirroring its edges, so everything inside the cut line stays exactly where it was and at the same size. Only Stretch the artwork enlarges the page, and only by the 3 mm needed.

Does it work on a multi-page PDF?

Yes. Every page gets 3 mm of bleed and its own crop marks, and pages that are turned stay turned.

Is my PDF uploaded?

No. The file is read and rewritten on your own device. Nothing is sent anywhere.

Other ways to open it

Add Bleed and Crop Marks to PDF · Add Crop Marks to PDF

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