App to resize many images in a folder? [closed]

Question

Possible Duplicates:
Windows tool to resize / crop images before uploading to web site
Bulk convert photos to smaller size?

What app can i use to resize many or all images in a folder? I want to give either an exact size such as 200x400 or give it a % like 35%x35%

preferably for windows xp but windows 7 is ok too.

Answer 1

Irfanview has a built-in batch conversion tool

File > Batch Conversion/Rename

Select your images and click "add"

In the "Batch conversion settings" group, click "advanced"

Check "RESIZE" and either set by a specific width or height, or set by percent. Percent is better if you have images that are both in the landscape and portrait orientations in the same batch.

Click ok

For "output directory for result files" select where you want the newly created images to be saved.

Then, click "Start Batch".

Answer 2

The ImageMagick tools will have a couple of tools that can do this. You can then call the Mogrify command to do these exact things.

$magick> mogrify -resize 256x256 *.jpg

$magick> mogrify -resize 50% rose.jpg

$magick> mogrify -format jpg *.png

Etc

Answer 3

ImageMagick is what you need.

Answer 4

As big a fan I am of the command line I am, for batch image resizing I like Irfan View. It's super easy to use and very well documented.

The best part? Not only can you resize images, you can rename them at the same time. I use it all the time at work.