Looking for an image size converter and keeping original ARs

[2COOL]

OK, I'm not a newbie but this question I have is a newbie for me.

I have digital photos (jpg,bmp,png) that have been taken horizontally and vertically. I want to keep the aspect ratios, even though they're off, and convert them automatically to 4:3 or 16:9. Again, I want to keep my pictures' ARs so I will expect bars around in my end results. Is there an app, possibly freeware, that can do this automatically and quick?

I have alot of photos that eventually I want to do a slideshow out of them.

I know someone will suggest a slideshow program but I'm trying to do things manually due to a brainstorm test of mine. I just need to start with the proper size conversion of my image first.

Basically, I'm looking for a image size converter. ;)

[ammck55]

Hey 2COOL, long time no-see. :)

I'm not sure if it's what you're looking for, but Irfanview (http://www.irfanview.com) has the most tools of any freeware image editor that I know of.

File->Batch Conversion/Rename->Advanced options will give you a pretty darned good toolset to work with, or Image->Resize/Resample for plain old manual mods. And no, I won't suggest that you use an Auto-slideshow, but Irfanview has one of these, too, if you ever need one. :) Enjoy!

ammck55

Edit...Too bad ieSpell (http://www.iespell.com) doesn't work with proper names. :rolleyes:

[akupenguin]

ImageMagick (http://www.imagemagick.org/) (particularly the frontend named "convert") has some nice features including scaling and letterboxing. While it has no builtin batch mode, it's easy to invoke it on each file using a script.

[2COOL]

Thanks guys for your suggestions! I actually went for ImageMagick because it did exactly what I wanted to accomplish. (resize and center any custom photo size for an overall 4:3/16:9 ratio). It took me a while to play with the CLI commands though. :(

I used the montage utility instead.