Thumbnail Accumulator - Version 1.0 Thumbnail Accumulator is an awesome piece of software that enables you to quickly and easily create single or multiple website thumbnails/screenshots. The beauty of Thumbnail Accumulator is that it enables you to generate multiple thumbnails with one sweep and customize the dimensions and file format of each website snapshot. This software is ideal for one publishing review sites of different offers within the same niche and dramatically increases the conversion ratio by adding eye appealing content for your visitors.