Resize Image in CM Online
Set an image size in centimeters for print, documents, IDs, certificates, and application forms. Enter the required width and height, keep the image proportional when needed, and download a file prepared for physical dimensions.
Drag & Drop Image files here
Supported Files : JPG, PNG, WEBP, TIFF.
You can also click to select files.
How to resize an image in cm
Select a photo or graphic from your device. Start with a clear original if the image will be printed.
Choose centimeters as the unit, type the required width and height, and set DPI based on whether you need web, document, or print quality.
Process the file and save the resized image. Use it for print, forms, or document uploads.
When to resize images in centimeters
Centimeter resizing is best when the final image will be printed or submitted to a document system with physical size rules.
Print-Ready Dimensions:
Use centimeters for photos, certificates, cards, labels, and documents where physical size matters more than screen pixels.
DPI-Aware Resizing:
Centimeter sizes depend on DPI for pixel output. Use higher DPI for sharper print results.
Useful for ID Photos:
Prepare common document sizes such as 35x45 mm photos or use inch-based sizing for passport photo resizing.
Aspect Ratio Control:
Lock aspect ratio to avoid distortion, or unlock it only when the form specifically requires exact width and height.
Resize and Compress:
If the final image also has a file-size limit, combine cm resizing with image compression before download.
Resize Image in CM FAQ
Upload the image, select centimeter mode, enter the desired width and height, choose DPI if needed, and download the resized result.
Centimeters describe physical size, while screens and files use pixels. DPI tells the tool how many pixels should fit into each printed inch, which affects print sharpness.
300 DPI is a common choice for sharp prints. Lower DPI may be fine for web previews or documents that do not need high print detail.
Yes. Millimeter sizing is useful for ID and passport photo formats such as 35x45 mm.
Yes. Use resize image in inches for inch-based print sizes such as 2x2, 4x6, 5x7, or 8x10.
It can if the pixel dimensions become smaller. If you need a strict KB or MB limit, use compression after resizing.