A2 at 72 DPI in pixels: 1191 × 1684

A2 at 72 DPI is 1191 × 1684 pixels

A2 (420 × 594 mm) at 72 DPI is 1191 × 1684 pixels, which is 2 megapixels.

Portrait	1191 × 1684 pixels
Landscape	1684 × 1191 pixels
With 3 mm bleed	1208 × 1701 pixels
Megapixels	2
Aspect ratio	1.41:1 (1 to √2 before rounding)
File size	5.7 MB as uncompressed 8-bit RGB; a JPEG or PNG is smaller
Paper size	420 × 594 mm (16.54 × 23.39 in)

Portrait

1191 × 1684 pixels

Landscape

1684 × 1191 pixels

With 3 mm bleed

1208 × 1701 pixels

Megapixels

Aspect ratio

1.41:1 (1 to √2 before rounding)

File size

5.7 MB as uncompressed 8-bit RGB; a JPEG or PNG is smaller

Paper size

420 × 594 mm (16.54 × 23.39 in)

The working

Pixels are inches multiplied by the resolution, and an inch is 25.4 mm.

Width: 420 mm ÷ 25.4 = 16.535 in; 16.535 in × 72 = 1,190.6, which rounds to 1191 pixels.
Height: 594 mm ÷ 25.4 = 23.386 in; 23.386 in × 72 = 1,683.8, which rounds to 1684 pixels.

Bleed is extra image past the trim line, so that a cut that lands slightly off still leaves ink to the edge. Print shops usually ask for 3 mm on every side of an A-series page, which makes the file 1208 × 1701 pixels.

Is your photo big enough?

To fill A2 at 72 DPI an image needs at least 1191 × 1684 pixels. Cropped to fill the sheet:

A 12 megapixel phone photo (4000 × 3000) gives 171 DPI: enough.
A 24 megapixel camera photo (6000 × 4000) gives 242 DPI: enough.
A 48 megapixel photo (8000 × 6000) gives 342 DPI: enough.

At 72 DPI the pixels of a print blend together from about 47.7 inches (121 cm) away. 72 DPI is the old screen convention: early Macintosh displays showed 72 pixels to the inch, matching the 72 points in an inch of type. Many image files still carry a 72 DPI tag for that reason.

A2 at other resolutions

Resolution	Pixels	With bleed	Megapixels	Uncompressed
72 DPI	1191 × 1684	1208 × 1701	2	5.7 MB
96 DPI	1587 × 2245	1610 × 2268	3.6	10 MB
100 DPI	1654 × 2339	1677 × 2362	3.9	11 MB
150 DPI	2480 × 3508	2516 × 3543	8.7	25 MB
200 DPI	3307 × 4677	3354 × 4724	15	44 MB
240 DPI	3969 × 5613	4025 × 5669	22	64 MB
300 DPI	4961 × 7016	5031 × 7087	35	100 MB
400 DPI	6614 × 9354	6709 × 9449	62	177 MB
600 DPI	9921 × 14031	10063 × 14173	139	398 MB
1200 DPI	19843 × 28063	20126 × 28346	557	1.56 GB

A2 is a mid-size poster and art-print sheet, four times the area of A4. See A2 in pixels at every resolution or everything at 72 DPI.

A2 at 72 DPI is 1191 × 1684 pixels

The working

Is your photo big enough?

A2 at other resolutions

Other sizes at 72 DPI