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    Formats d'impression : tous nos standards, en pouces et en millimètres

    Feuilles, cartes, invitations, enveloppes et papeterie : chaque format fini dans les deux systèmes d'unités, avec les pièges signalés.

    Deux systèmes de mesure, deux conventions de nommage qui utilisent les mêmes lettres pour des choses différentes, et des formats professionnels dictés par les feuilles d'impression plutôt que par l'esthétique. Voici la référence que nous utilisons chaque jour : formats de feuilles, cartes, invitations, enveloppes et le reste de la papeterie, avec les pièges identifiés.

    Trois points à connaître avant tout tableau

    1. "A7" means two different things. In the United States an A7 is a 5 × 7 inch card — the standard wedding invitation. Under ISO, A7 is 74 × 105 mm, about the size of a luggage tag. The US announcement sizes borrowed the letters and ignored the system. When you brief a printer, say the dimensions.

    2. Trade sizes come from press sheets, not taste. A 3.5 × 2 inch business card exists because it lands a clean multiple on a 12 × 18 or 19 × 25 sheet. Ask for 3.6 × 2.1 and you pay for the same sheet with fewer cards on it. Standard sizes aren't a limit on creativity — they're where the price is.

    3. ISO A halves cleanly; US sizes don't. Fold any A size in half and you get the next one down at the same 1:√2 proportion. Fold US Letter in half and you get 5.5 × 8.5, a different shape entirely. This is why European stationery families nest and American ones need their own chart.

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ISO A SERIES · EACH HALVES INTO THE NEXT · TO SCALE 0.28 PX PER MM A0841 × 1189 mm A1594 × 841 A2420 × 594 A3297 × 420 A4210×297 A5148×210 A6105×148 A7 A7 · 74 × 105 mm every size is 1:1.414 (1:√2) — halving the long side gives the next size at the same proportion coral = the two most-ordered sizes A0 is exactly one square metre. All sizes shown portrait, to one scale.
    Fig. 1 : la série ISO A. Le A0 mesure exactement un mètre carré. Chaque format inférieur correspond au précédent plié en deux.

    Tous Formats d'impression Guides

    Unités, fond perdu, marges

    Every size on this site is a trim size — the finished piece after cutting. Artwork has to be bigger than that, and the important content has to be smaller.

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3.5 × 2 IN BUSINESS CARD · ARTWORK ANATOMY keep type + logo in here bleed 3.75 in / 95.25 mm BLEED · +0.125 in (3 mm) per side background art runs to here so the cut never reveals a white sliver TRIM · 3.5 × 2 in · 88.9 × 50.8 mm the finished card, ±0.03 in cutting tolerance SAFETY · 0.125 in (3 mm) inside trim nothing that must not be clipped goes outside this line LARGE FORMAT · bleed 0.25 in (6 mm) FOLDED WORK · 0.125 in creep allowance DIE-CUT · 0.125 in bleed past the die line
    Fig. 2 : format fini, fond perdu et zone de sécurité. Trois valeurs qui évitent la plupart des refus de fichiers.

    Conversion des unités

    Conversions d'unités pour l'impression : longueur, épaisseur, corps de caractère, grammage et résolution
    QuantitéImperialMetricConversion
    Length1 in25.4 mmmm = in × 25,4
    Épaisseur1 pt = 0.001 in (0.0254 mm)0.0254 mm16 pt ≈ 0,41 mm · 32 pt ≈ 0,81 mm
    Taille du texte1 pt = 1/72 in (0,353 mm)0.353 mm⚠ point typo ≠ point d'épaisseur
    Grammage, papier texteTexte 80 lb≈ 118 gsmbase 25 × 38 in (635 × 965,2 mm) / 500 feuilles
    Grammage, carton100 lb cover≈ 270 gsmbase 20 × 26 in (508 × 660,4 mm) / 500 feuilles
    Grammage, bond/écritureBond 24 lb≈ 90 gsmbase 17 × 22 in (431,8 × 558,8 mm) / 500 feuilles
    Résolution300 dpi118 px/cmminimum pour fichiers d'impression

    The point trap. "12 pt" on a stock spec means 0.012 inch thick. "12 pt" on a type spec means a sixth of an inch tall. Same abbreviation, unrelated quantities — and gsm doesn't map cleanly onto either, because it measures mass per area, not thickness. A bulky uncoated 300 gsm cotton and a dense coated 300 gsm sheet can differ by 30% in caliper.