You can try Boxoft Batch Photo Resizer to cusmoize width and height of picture, it provides 4 kinds of processing method: "Restrict width", "Restrict height", "Fit image" and "Ingnore proportion" which you can adopt base on need. it also allows you to rename, rotate, etc pictures. you can also convert resized pictures to other formats: tif, bmp, gif, jpg, ico, j2k, png,tga, pcx, etc.
More detail follow steps below:
Click "Add" or "Add Folder" button to add pictures;