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.
mm
mm
Resized Files
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)
Upload Your Image Choose the image you want to resize.
Enter Your Dimensions Input the width and height in
millimeters (e.g., 35mm × 45mm at 300 DPI).
Click "Resize Image" The process takes just a few seconds—your
resized image is ready in 3–4 seconds.
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.
Explore More Tools
Looking for different resizing needs? Check out our suite of tools for pixel-based resizing,DPI
conversion ,image compression , and more. Just select from the options below to get started.
