What size is a A3 (300 DPI) image?

A3 (300 DPI) images are 3508 x 4961 pixels. A3 poster at print resolution.

Will my image be stretched?

No. The image is scaled to fit fully inside the dimensions with no distortion.

100% Client-side

No. Resizing runs entirely in your browser. Nothing is uploaded.

Resize any photo to 3508 x 4961 pixels, the right size for A3 (300 DPI). A3 poster at print resolution. Nothing uploaded.

or drop image here

JPG, PNG, WebP. Any size works.

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1. Add your image

Drop in a JPG, PNG, or WebP.

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2. Fit to 3508 x 4961

We scale it to fit fully inside the frame.

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3. Download

Save your A3 (300 DPI) ready image.

What is the correct size for A3 (300 DPI)?

3508 x 4961 pixels. A3 poster at print resolution.

Are my images uploaded?

No. Resizing runs entirely in your browser. Your image never leaves your device.

Will the image look stretched?

No. We fit the whole image inside the frame with no distortion.

Is this free?

Yes. Free, no signup, no limits.