Photo Batch Converter is a very useful tool for photo conversion, capable of batch converting the file format of photos, supporting more than 30 formats including bmp, wbmp, jpeg, png, tif, gif, pcx, tga, ico, psd, jp2, j2k, dcx, pdf, etc.
Changes photo attributes, such as color, quality, brightness, contrast, etc. Adjusts photo size on scale or according to custom size, and supports photo rotation.
Photo Batch Converter is capable of adding user-defined water mark onto photo.
Previews source files with effect previews. Very easy to use.
Converts documents and multimedia files to other formats with batch support
PhET is a collection of physics simulations from University of Colorado
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