Advanced Image resizer is a program to resize and convert your pictures. It has rather handy interface so it won't be very difficult to use it but you will need some time to get used to it if you do not like reading Help files. Just add some pictures you want and start applying actions. You will be able not only convert and resize images, there are 8 ways to resize the images: Best Fit and Auto Crop are among them, but also create your own web gallery of images by geberating the HTML files for thumbnails of the images, set its auto renaming. Also you will have a possibility to place a text on the image, the font, color, size, position and effects of the text are also adjusted and so on.
Advanced Image Resizer supports such formats as BMP, GIF, JPG, PNG, PCX, PSD, TGA, TIF, WMF and EMF and has 12 filters to perform the best result of image resizing.
This program is shareware, but you can download its trial version which has no time limitations but output images will have the 'unregistered' stamp on the right-bottom corner.