Picasa is a free program from Google that can be used for editing and sharing your digital photos. You can download it at http://picasa.google.com/. Click on the download button to get the installation file, then click on the file to run it and install Picasa on your computer.
When you open Picasa, it will scan your computer for image folders and display the list on the left. Select the folder you want to work on by clicking on it.
First, review the album by clicking on the slideshow button (green arrow). As you are watching the slideshow, you may decide that a photo is not good. To discard it, stop the slideshow (move your mouse to the bottom and click “exit”). If the unwanted image is displayed, delete it using the delete key on your keyboard.
Almost any digital photo can be improved by cropping and adjusting the values. To crop a photo, click the crop button in the left tool panel, then click one of the three suggested crops. A cropping border will appear on your image. You can move it around by holding down the left mouse button and dragging it. You can change the dimensions by “grabbing” one of the borders and dragging it. Try grabbing a corner to change two sides at once. Click “apply.” To save your changes, use Cntl-S, or File/Save.
The other buttons on the tool panel allow you to add text, adjust balance and contrast, and apply some fancy effects. Play around! If you do something and you don’t like it, simply hit Ctrl-Z to undo. If you like something, don’t forget to save it.
When you have made all your changes to the album, it’s time to share it. I do this in two ways: a Google album and a Youtube slide show. Both are easy in Picasa.
If you are still in the edit mode, leave it by clicking “Back to Library.” Select all images in the album by keying Ctrl-A or right-clicking the album in the left panel and chosing “Select All.”