Caesium: 90% image compression without quality loss

We're often left with too less memory space to keep those jumbo sized images from the DigiCam. And even worse, we can't let go those memories stored in them.

Here is just a simple and very efficient batch image compressor: Caesium.

3 Steps to lossless image compression:

1. Add Images: 

    Just add all the images you desire to compress: File->Add Pictures

2. Quality Select:

    Select the output quality. Now, select the default 80%. Now here, you lose 20% of the quality, but than nobody can figure out the changes. And you get an average compression of 70% for 20% loss(which can't even be seen). Compression depends on the camera and the details the image contains.

3. Compress:

   Action->Compress, and you're good to go. Saving on memory space and not losing on details.

Link:

http://caesium.sourceforge.net