Starting settings
Photo Resizer in CM Online Free
Choose your settings, inspect the preview and keep the original.
Drag & drop your images here
JPG · PNG · WebP · GIF · BMP
or paste an imageCtrl / ⌘ + V
Check quality and actual output size in the preview.
More options Dimensions & units
DPI converts cm/inches to pixels. We do not write print DPI metadata to the file.
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Batch Queue (0 images)
ZIP export processes every image with your current settings. Check actual output sizes.
What to check
- File size
- Choose a maximum
- Dimensions
- Original dimensions or your own setting
- Format
- JPG / PNG / WebP
Actual size and quality depend on your image. Settings do not certify acceptance by another service.
How to use this guidance
- 01
Choose your original
Select an image and keep a copy. Animated GIF input produces a still image.
- 02
Set a maximum and dimensions
Enter the destination’s requirements. Custom dimensions remain fixed even when a very small cap cannot be reached.
- 03
Inspect the output
Check actual bytes, pixels and readability. A preset does not guarantee third-party acceptance.
A physical size depends on the pixel-density calculation. For example, 3 × 4 cm at 300 DPI is approximately 354 × 472 px. DPI here does not set print metadata.
Check your print software’s physical size separately. For an online form that names pixel dimensions, enter pixels directly.
Common questions
Does a target guarantee an exact file size?
No. The target is a requested maximum. Inspect the actual bytes, dimensions and visual quality; a very small target can remain unmet.
Will compression keep every detail?
JPEG and WebP can lose detail. PNG uses lossless encoding, but resizing changes pixels. Keep your original and compare the preview.
Does this tool set print DPI metadata?
DPI converts centimeters or inches to pixels. This browser export does not write your chosen print-DPI tag. Check pixel dimensions and use print software for physical print settings.