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Resize image to A4 (210 × 297 mm)

2480 × 3508 pixels at 300 DPI, with the DPI saved in the file.

Preset

Drop images here, or paste with Ctrl+V

JPG, PNG, WebP, GIF or HEIC. Several at once is fine.

Settings size, KB limit, format, DPI
1 to 100, empty = automatic

    Your images are processed on this device and never uploaded.

    Crop image

    Drag the box to move it and the corners to resize. With the box focused, arrow keys move it and Shift+arrow keys resize it.

    Example with a real photo

    We ran this tool on the photo below. These are the real results.

    Original4032 × 2691 px · 3.13 MB · JPG
    Result2480 × 3508 px · 984.0 KB · JPGShown smaller here; the numbers are for the full file.

    Photo: Unsplash

    What this page does
    SizeA4 (210 × 297 mm)
    Resolution300 DPI (change it in Settings)
    Pixels2480 × 3508
    FormatJPG with DPI metadata

    How to use it

    1. Choose crop or fit, and portrait or landscape if offered.
    2. Drop your photo.
    3. Download it and print at 100% (no "fit to page").

    About A4 (210 × 297 mm)

    A4 is the standard paper size almost everywhere outside North America. At 300 DPI it is 2480 × 3508 pixels.

    The tool converts millimetres to pixels using the DPI you choose, then writes that DPI into the file. Print software reads it and prints at the right physical size.

    Questions

    What is the difference between A4 and Letter?

    A4 is slightly narrower and taller (8.27 × 11.69 in) than US Letter (8.5 × 11 in). Use the matching page so the image fills the paper you print on.

    What DPI should I use?

    300 DPI is the usual standard for photo prints and gives sharp results. Some online forms ask for 200 DPI; change it under Settings and the pixel size updates to match.

    Is my photo uploaded to a server?

    No. The resizing runs inside your browser with JavaScript, so the image never leaves your device. Once the page has loaded, resizing keeps working even if you go offline.