Resize fit

Download and install the latest version of Filestar.
Right click on one or more Fit file(s) on your desktop and select Convert with Filestar.
Type resize in the search box.
Press Resize.

What is .fit?

Name: Flexible Image Transport System
Extension: .fit
Format: Binary
Category: Raster Image
Developer: IAU FITS Working Group
Description: FTS file format is used to edit, store and transmit images with metadata (data with spatial and photometric calibrations) for scientific purposes. Most times it stores the data without the actual associated images.
MIME Type: image/fits
Sample: sample.fit
Wikipedia: .fit on Wikipedia