Resize Image to A4 Size
Resize any image to A4 at 300 DPI (2480×3508) in your browser. Drop your files in and download — no upload, no watermark.
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JPG, PNG, WEBP · multiple files at once
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A4 is a physical size — 210 by 297 millimetres — so turning it into pixels means choosing a print resolution. At 300 DPI, the standard for anything meant to look properly printed, that works out to 2480×3508 pixels. At 150 DPI you would need half that, and it would look noticeably softer in the hand.
Why this preset keeps the whole image
Most resize presets fill the frame and crop the overflow. This one does the opposite by default: A4 is usually reached for with documents, scans and certificates, where losing an edge means losing content. So the image is fitted inside the page with padding around it. Switch to Cover if you are printing a photograph and would rather fill the sheet.
Enlarging will not add detail
If your source image is smaller than 2480×3508, scaling it up to A4 stretches the pixels you already have — it cannot invent detail that was never captured. A 1000-pixel-wide scan will print at A4, but it will look like a 1000-pixel scan. Rescan or reshoot at higher resolution when the print matters.
Related sizes
Frequently asked questions
- How many pixels is A4?
- 2480×3508 at 300 DPI. At 150 DPI it is 1240×1754, and at 72 DPI roughly 595×842.
- Why 300 DPI?
- It is the common threshold where individual dots stop being visible at normal reading distance — the usual standard for printed material.
- Will my image be cropped to fit A4?
- Not by default. This preset fits the whole image inside the page and pads the rest. Choose Cover if you want it to fill the sheet.