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As implied by the title, does anybody know how to use the gimp-console-[version].exe program to batch convert images between formats (with default settings) in Windows ?

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5 Answers 5

up vote 27 down vote accepted

Better than Gimp or Irfanview is ImageMagick.

For instance, try:

mogrify -format jpg *.png
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+1 concur, why carry all the baggage of gimp, when a command line tool specific for the job exists. –  DaveParillo Dec 1 '09 at 19:19
Also mogrify will overwrite the original images, use convert to make new files in the desired format. –  DaveParillo Dec 1 '09 at 19:20
mogrify did the trick, I was completely unaware of it until now. Thank you very much. –  Alex Marshall Mar 28 '10 at 16:20
Perfect! Thanks! ImageMagick got automatically installed when I installed Zbar (a barcode reader, it Depended on ImageMagick,) but I didn't realize how useful this was! Thank you so much! –  JamesTheAwesomeDude Dec 25 '12 at 6:24
Please be aware, that in many cases Gimp generates smaller images than imagemagick, so if you are going for size, check gimp batch mode as well. –  Krystian Jul 25 '13 at 8:10

Although it's not the easiest solution, see GIMP Batch Mode :

GIMP comes with a so-called batch mode that allows you to do image processing from the command line. It also makes it easy to apply the same set of operations to a number of images. We have got a lot of questions on the mailing-lists on how to use the batch mode and this small page tries to explain the basics to you.

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Some example commands? –  Likso Jun 5 '13 at 9:58

There is also a wizard based batch processor available:

DBP (David's Batch Processor) for GIMP

enter image description here

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I've tried so many different ways to batch convert a bunch of DDS files to another file format, and this is the only way that's worked. Thank you so much! –  Mike Pateras Mar 19 '11 at 16:19

Is using Irfanview not an option? I keep both GIMP and Irfanview installed for precisely this reason...GIMP for image editing and Irfanview for batch conversion.

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Irfanview is named for its author, Irfan Skiljan. Irfanview is pronounced "EarfanView". See irfanview.com/main_about.htm for more. –  eleven81 Dec 1 '09 at 17:34
Thanks, fixed the spelling. ;) –  AlexMax Dec 9 '09 at 16:11
Yeah! Irfanview is THE dafault converter ;) –  kokbira Aug 26 '10 at 12:51

I am going to fall into the camp of using the right tool for the job and I have both Irfanview, and ImageMagick installed, and agree that both are fantastic tools. However let me throw in one more option for posterity. I don't use XnView on a regular basis, but keep a copy of the portable version around to keep on my usb so that I have a powerful easy to use very capable image tool available when I'm out and about. The beauty of the portable version is that you can use it and if you don't like it just delete the install directory. It along with dozens of other free and open source portable applications is available at http://portableapps.com/ or specifically http://portableapps.com/news/2009-12-06_-_xnview_portable_1.97 The installer will create a directory that contains everything necessary to run the program. Just go to that directory, start the EXE, give it a test. As stated above, when you get tired of it just delete the whole directory. They all run just like that from a USB stick as well. I have about 80 apps I carry around with me and use on public or shared PC's.

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