2×2.75 inch (51×70 mm) Photo

The 51×70 mm photo is a rectangular document format measuring approximately 2×2.75 inches. The 51 mm width corresponds neatly to 2 inches, which is why this size appears on documents that mix metric and imperial conventions. It is a generic format requested by various institutions, and the essential task is to match the 51 by 70 millimetre dimensions and the framing rules exactly.

We prepare this size to a precise, print-ready standard so it is suitable for both paper forms and digital uploads.

Where this size is used

A 51×70 mm photo is found on certain identity documents, professional cards, registration forms and credentials, particularly where a 2-inch width is specified alongside a taller frame. The format gives a clear, sizeable portrait similar to other large rectangular standards. Since 51×70 mm is close to but not the same as 50×70 mm, always check exactly which width your institution requires, because even a one-millimetre difference can matter for strict document slots and forms.

Exact specification

The finished print is 51 millimetres wide by 70 millimetres tall, about 2×2.75 inches. At 300 dpi this works out to roughly 602×827 pixels. The head height target is approximately 52.5 mm, placing the face within a band of around 55 to 70 percent of the frame height. The slightly wider 51 mm dimension gives a small amount of extra side margin compared with a 50 mm width. The background must be plain white (#FFFFFF), evenly lit and shadow-free, with the subject centred, facing the camera and holding a neutral expression.

• Dimensions: 51×70 mm (≈2×2.75 in), 300 dpi, about 602×827 px
• Head height: approximately 52.5 mm (about 55–70% of frame height)
• Background: plain white, uniform and shadow-free
• Expression: neutral, mouth closed, no smile
• Glasses: not allowed
• Headwear: not permitted except for everyday religious coverings that keep the face visible
• File: JPG, up to 2 MB

Common rejection reasons

A frequent problem with the 51×70 mm format is confusing it with the very similar 50×70 mm size, so the width comes out wrong; getting the 51 mm exactly right matters. Beyond that, the usual causes apply: a background that is not pure white, shadows behind the head, glasses of any kind (not permitted for this size), a smile or parted lips, and a head positioned so that the 52.5 mm target is missed. Low-resolution originals that look soft when printed at this larger size, and hair covering the eyes, also lead to refusal.

How we prepare your photo

Upload a clear photo on any background. Our service removes the original surroundings, places you against a uniform white field, and frames the portrait within the exact 51×70 mm rectangle, paying attention to the precise 51 mm width. We scale the head to the approximately 52.5 mm target, balance the lighting, and confirm the neutral expression and no-glasses requirements. The final file is exported as a 300 dpi JPG at exactly 51×70 mm and kept within the 2 MB limit, ready to print or upload.

Print vs digital

The 51×70 mm format works as a physical print and as a digital file. For a paper document, the 300 dpi output reproduces sharply at its true 51×70 mm size, and the precise width fits document slots that expect a 2-inch portrait. For an online portal, the same JPG stays under the 2 MB cap and uploads without further editing. Because we deliver one exactly dimensioned file, a single preparation covers both printing and digital submission.

Why the exact width matters

The defining detail of the 51×70 mm format is its precise 51 mm width, which lines up with a 2-inch measurement. It is easy to assume any roughly-2-inch photo will do, but document slots, laminating pockets and form windows are often cut to a fixed size, and a portrait that is a millimetre or two off can sit unevenly or fail an automated dimension check. We set the width to exactly 51 mm and the height to exactly 70 mm, so the file matches the requirement to the pixel. If your institution lists the size in inches as roughly 2×2.75, this metric format is the equivalent, and preparing it precisely removes any doubt about whether the dimensions will be accepted.

Getting the 51×70 mm photo right once, with its exact 2-inch width, gives you a dependable portrait for any document or form that specifies this particular size.