Adobe Photoshop Express

Lite version of Photoshop

Converseen

Image redimensioning and conversion tool

GIMP

A free and open-source image editor

PicsArt

Simple image editor that includes a social network

PhotoScape

The free and simple image editor that you were looking for

Remove.bg

Remove the background of your images with Remove Background

Image Converter One

Make basic changes to your images

Boxoft Batch Photo Processor

Change the format of all your photographs at the same time

Print2Flash

Transform printing documents into Adobe Flash files

Print2CAD

Transform PDF files to DWG

PassportPhoto

Print your own ID photographs

Ulead Photo Express

Create fantastic projects based on your digital images

Photoshop

Professional photo enhancement on your PC

Magic Swf2Gif

Convert any SWF animation to GIF, TGA or BMP

Adobe DNG Converter

Covert photos in any RAW format to the universal DNG format

Paint.NET

A lightweight and functional image editor for Windows

Microsoft Mathematics

Solve mathematical operations with this free tool

Octave

Applied calculus software very similar to MATLAB

MathType

Complete mathematical equation and formula editor

Mathematica

Platform for computational development

GeoGebra

Software to learn maths at all levels

IBM SPSS Statistics

Poweful software to collect and analyze statistical data

Statgraphics

Carry out statistical analyses on your data

MATLAB

Maths software tool for PC

Minitab

One of the best statistical calculation programs

Maple

Solve complex mathematical operations

Mathcad

Software for engineering calculations

PASW

One of the most powerful statistic solutions on the market

WinPlot

Generate 2D and 3D graphics

Derive

Powerful tool for symbolic mathematic calculations

GeoEnZo

Digital board to teach and learn maths