Batch Resizing with Irfan View
Go to the
IrfanView site and download the software from one of the many available mirrors. IrfanView is completely free and supports many different kinds of image formats.
Note: This software is PC compatible only.
- Place all the images you want to resize into a folder.
- Create a new folder, in the location of your choice, where the resized images will go.
- Open IrfanView
- Go to File > Batch Conversion/Rename…
- Select the Work as: Batch conversion radio button.
- At the top right, in the Look in: area browse for the folder with the images you want to resize.
- Select the files you want to resize and click “Add.” The image paths will appear in the white area in the bottom right corner.
- Under Batch conversion settings:
- Choose an output format, most likely this will be .jpg.
- Click on Options.
- Increase the JPEG quality to 100 (the difference is noticeable!)
- Click ok.

- Check the Use advanced options (for bulk resize..)
- Click Advanced. A new dialogue will open.
- Under RESIZE:
- Select Set New size
- Set one or both sites to: will automatically be selected.
- Set a width or height, or both.
- By setting a width and a height, with the Preserve aspect ratio (proportional) on (this is the default) width and height will be seen as maximum width or height. So, if you set the width and height to 200 pixels, and an image that is taller than it is wide is processed, the width will be less than 200, but the height will be exactly 200.
- Make sure Preserve aspect Ratio (Proportional) is checked
- Check Use Resample function.
- If you have images in your folder that are smaller than the size you are resizing to, check Don’t enlarge smaller images.

- When your settings are complete, click OK.
- Under Output directory for result files: browse for the folder you created that will house the resized images.
- Click Start Batch.