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Resize an Image for A4 Printing

A4 is the paper in nearly every office printer outside North America, which makes it the de facto size for printed photos, flyers, and small posters. Its proportions don't match any common photo ratio, so fitting an image to the page means choosing between cropping to fill and leaving margins — this tool lets you make that call with the numbers in front of you.

Resize by

Output: 2481 × 3507 px, DPI written to the file.

If the shape doesn't match
85%

or drag & drop images here, or paste from your clipboard

PNG, JPG, WebP, AVIF, GIF, BMP, TIFF, HEIC, SVG

Your images are processed on your device and are not uploaded to PNGful.

How it works

  1. 1

    Add your photo

    The resizer is preset to A4 (8.27″ × 11.69″) at 300 DPI — that's 2481 × 3507 pixels.

  2. 2

    Choose crop or pad

    Photos rarely match print proportions exactly; crop-to-fill trims the overflow, pad adds borders instead.

  3. 3

    Check the sharpness

    For top quality you want 2481 × 3507 px; 1241 × 1754 px still looks fine at arm's length.

  4. 4

    Download and print

    The DPI value is written into the file so print software sizes it correctly.

Common uses

  • Print a photo to fill an A4 sheet on a home or office printer
  • Prepare a flyer or notice image at the right resolution
  • Size artwork or a child's drawing scan for A4 framing
  • Check whether a downloaded graphic can survive A4 printing

Good to know

  • Full-page A4 at 300 DPI needs 2481×3507 pixels (8.27 × 300 by 11.69 × 300).
  • About 1240×1754 pixels — 150 DPI — prints acceptably for flyers and posters viewed from a short distance.
  • A4's ratio (~1:1.414) matches no standard photo ratio, so decide upfront: crop to fill the page, or keep the whole image and accept margins.
  • Most home printers can't print truly borderless — expect a few millimeters of white margin unless your printer specifically supports edge-to-edge.

Your images stay private

Your images are processed on your device and are not uploaded to PNGful.All processing happens locally using your browser's own image engine — there is no upload step, no server-side queue, and nothing to delete afterwards. Read more in our privacy policy.

Frequently asked questions

What pixel size is A4 at 300 DPI?

2481×3507 pixels. At 150 DPI it's about 1240×1754, which is fine for flyers and casual posters but soft for photographic prints examined up close.

If I set my image's DPI to 300, will it print better on A4?

No. The DPI field only maps pixels to physical size — it doesn't create detail. An image needs roughly 8.7 megapixels of real data to fill A4 at true 300 DPI.

Why doesn't my photo fill the whole A4 page?

A4's height-to-width ratio (about 1.414) is taller than a 3:2 or 4:3 photo. To fill the page you must crop; to keep the entire photo you must accept white bands. Neither is wrong — it's a framing choice.

Is A4 the same as US Letter?

No — A4 is 8.27×11.69 inches while Letter is 8.5×11. They're close enough that layouts often survive, but a full-bleed image sized for one will be slightly cropped or bordered on the other.

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