Using Office Thumbnailer you can batch generate preview for all files, especially Documents Files and Pictures as well. Just select folder and Office Thumbnailer will start looking into folders and subfolders for well-known Documents and Pictures files and make thumbnail for each file in a seconds.
You can use Office Thumbnailer to automate the process of generating thumbnail of any Document or Picture file and output a graphic file of what the pages looks like.
Office Thumbnailer is a solution designed for making thumbnails for popular documents file format easily with saving your time. No need to convert each file, like Word Document to image and then resize it to specific size.