Easy to use
Scale images from 1% to 500%
What percentage resizing means
Percentage resizing calculates new dimensions from the original image. At 50%, both width and height become half their original pixel values. At 100%, the dimensions remain the same. At 200%, both dimensions double. This is useful when you know how much to scale an image but do not have a required final pixel size.
How to resize by percentage
Open the InfoJano Image Resizer, upload a JPG, PNG or WebP file, and choose the By Percentage tab. Enter a value from 1 to 500. The tool calculates the corresponding width and height using the original image dimensions. Review the values, select JPG, PNG or WebP output and choose the quality setting before resizing.
Understand enlargement and reduction
A percentage below 100 reduces the pixel dimensions; a value above 100 enlarges them. Enlarging does not create new photographic detail, so a larger output may look softer than the original. Very large dimensions can also be demanding for a phone or browser. InfoJano limits each output dimension to 10,000 pixels and the total output to 40 megapixels for safer processing.
When percentage resizing is the right choice
Use percentage resizing when you want a consistent scale change for a photo, illustration or screenshot. If a form, website or print workflow specifies an exact width and height, use Custom Size or one of the available presets instead. If your goal is a smaller download measured in KB or MB, use the Image Compressor.