Resize Image in MM - JPEG Optimizer Image Resizer

Just upload your image, enter your required dimensions (like 35mm x 45mm), and let JPEG Optimizer take care of the rest. Whether you're applying for a job, submitting academic documents, or printing high-quality photos, JPEG Optimizer ensures your image meets the exact size and DPI you need.

➕ Select file

Choose maximum 50 images at once.

To retain the original aspect ratio of the resized image, either leave the Height or Width field blank. Alternatively, inputting the same percentage for both fields will also preserve the original aspect ratio.

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    Privacy: Files are NEVER sent to the server, and all processing is handled via your own browser. The image or any image related data is never stored.

    How to Resize Images in Millimeters (MM)

    1. Upload Your Image Choose the image you want to resize.
    2. Enter Your Dimensions Input the width and height in millimeters (e.g., 35mm × 45mm at 300 DPI).
    3. Click "Resize Image" The process takes just a few seconds—your resized image is ready in 3–4 seconds.
    4. Download Instantly Save your perfectly resized image with a single click.

    Key Features

    • Unlimited Resizing Resize as many images as you want—no limits, no hidden restrictions.
    • Beginner-Friendly Upload, resize, download. It’s that simple.
    • Multiple Format Support Works with JPEG, PNG, JPG, HEIC, SVG, and more.
    • Exact MM Dimensions Resize by entering width and height in millimeters, with optional aspect ratio lock.
    • Instant Results Resize in seconds without sacrificing image quality.
    • Crop Before Resize Crop your image exactly the way you want before finalizing the size.
    • DPI Adjustment Control DPI (dots per inch) for high-quality printing or submission standards.
    • No Installation Needed 100% web-based. No software to download or install.
    • Secure & Private Easily delete your files after resizing. Your documents stay safe and private.

    Why Use JPEG Optimizer for Image Resizing?

    JPEG Optimizer is your go-to tool for millimeter-based image resizing. Whether it’s for passport photos, college admission , government job applications, or professional printing, our tool ensures that your images meet exact size and quality requirements. Plus, it’s fast, secure, and completely free to use.

    Forget complex software. With JPEG Optimizer, everything happens online—quickly and accurately.

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