Resize Image to A3 Size

Use our free online tool to resize your image to A3 size, which is commonly used for posters, documents, and high-resolution prints. A3 dimensions in pixels are usually 3508x4961 for 300 DPI quality. This tool works directly in your browser and supports formats like JPG, PNG, and WebP.

How to Resize Image to A3 Size

• Click on the Choose File button to upload your image.
• Set the width to 3508 and the height to 4961 for 300 DPI print quality, or select A3 from the dropdown size options.
• Uncheck the aspect ratio lock if you want an exact A3 size.
• Click Resize and wait for the image to process.
• Download the resized image to your device.

Why Should You Resize to A3 Size?

• Perfect for printing posters, flyers, and high-quality documents.
• Matches standard A3 dimensions used in printers and design software.
• Ensures consistency in print layouts and presentations.

Extra Image Editing Tools

• Crop: Cut out unwanted parts before resizing.
• Rotate: Adjust image orientation as needed.
• Flip: Flip images horizontally or vertically.
• Compress: Reduce file size while maintaining quality.

All image processing is done in your browser for full privacy. No need to install anything or upload your images to a server.

FAQs

What is the pixel size of A3?

At 300 DPI, A3 size is 3508x4961 pixels.

Is A3 size suitable for posters?

Yes, it is a common format for large posters and documents.

Can I upload PNG or WebP files?

Yes, the tool supports JPG, PNG, and WebP image formats.

Is the resizing tool free to use?

Yes, it's completely free with no login or signup required.

Can I crop the image before resizing?

Yes, the crop feature allows you to remove extra parts.

Is it safe to use this tool?

Yes, your image never leaves your device. Everything is processed locally.