It’s a free application for Windows, OSX and Linux which makes it super easy to resize and convert lots of image files.
All common picture and graphics formats are supported (i.e. JPG, PNG, TIFF, GIF, Camera RAW, JPEG2000, WebP, OpenEXR) as well as over 500 other image formats.
HOW TO RESIZE THE PNG FILES IN XNCONVERT 1)Input tab > Add files > Select the PNG files. 2)Actions tab > Add action > Image > Resize (Uncheck Keep ratio). 3)Output tab > Select an output folder. 4) Click on the Convert button at the bottom.