What if you have images you want to resize? Some of these are porČtrait and some landscape, some are BMPs, some are TIFFs and some JPGs? If you sit down to resizejre sample each image individually, it will take you forČever. Instead, open the first image in the folder, then press [B]. Now you will see the "Batch conversion" dialog box pop up. Just select all the images from that folder and click on Add (or just click on "Add all'. Now it's time to see the resizejresample options that will help IrfanView automatically resize your images. Look for the "Use advanced options" checkbox and tick it. now click on the Set advanced options button. In order to resize proportionately, again, make sure the Preserve aspect ratio checkbox is ticked.
Now click on the Resize checkbox and then select the option to either set longer or shorter side to whatever size you want. This is helpful because you might have portraits mixed with landscapes Also remember to look at the JPG options, to make sure that everything is fine. Next, you should look at the path in which IrfanView is saving the resized images. The best way we've found is to click on the "Use this directory as output" button, and then add some folder name to the Output directory path ("resized" or "smaller" is what we prefer !o call the new folder). After all this, just click on Start and watch in amazement how IrfanView goes about mercilessly reducing image sizes!