PICASA:

                Picasa is an image organizer and viewer, where you can edit digital photos on an integrated photo-sharing website. It has been owned by Google since 2004 and since has been offered as freeware. Applications are available through Google Labs for Windows XP, Windows 7, Windows Vista and Mac OSX (Intel only). Picasa offers tracking and file importing features, tags, facial recognition, collections to help organize photos. Picasa also has basic editing features such as color enhancement, cropping, add text to image, and red eye reduction. Other features included are image timelines; reduce file size, printing, geotagging and slideshows. Users can view and edit RAW files then once finished can save them as JPG, or other forms, and no changes will be made to the original RAW file. In order to keep track of keywords for each image file, Picasa uses picasa.ini. Picasa also attaches IPTC Information Interchange Model keyword data to JPEG files only. These files can be read by other image library software. Image library software includes Adobe Photoshop Album, Adobe Photoshop Lightroom, Adobe Bridge, digiKam, Aperture, and iPhoto. When viewing the library, Picasa has a search bar where the searches are live. This means as you type the displayed items are filtered. It searches filenames, tags, captions, folder names and other metadata. Picasa also offers a feature that allows you to search an image based on what colors it contains. There is no window that is specifically for viewing, only “edit view” which contains a viewing area. However when in slideshow mode, images can be viewed full screen.