Here is a guide to install Synfig Studio on Ubuntu 13.04. You can install Synfig Studio Using the Ubuntu Software Center.
Synfig Studio is a free and open-source 2D animation software, designed as powerful industrial-strength solution for creating film-quality animation using a vector and bitmap artwork. It eliminates the need to create animation frame-by frame, allowing you to produce 2D animation of a higher quality with fewer people and resources. Visit the Synfig Studio Homepage.
To install Synfig Studio click on the link below
Install Synfig Studio
When the software center is opened click on the Install button and enter your password to authenticate the installation. When Synfig Studio is installed you can close the software center, to start Synfig Studio press the SuperKey and type: synfig studio
Spatial resolution-independence, Most elements are vector-based, and all layers are parametrically generated, hence even when changing the target resolution of a project, the only pixelation will occur in imported raster images, not the built-in components.
Temporal resolution independence, Animation-keyframes are automatically interpolated by the computer, resulting in smooth motion
High Dynamic-Range Imaging (HDRI), By using floating-point math in the image calculations, HDRI processing allows canvases to internally understand a far greater range of pixel luminance, resulting in better lighting effects, and improved color composition.
Pentablet-friendly tools, The draw tool already reads the pressure sensitivity channel off your favorite tablets, for natural line weighting, and more to come!
Artist-oriented design, While it may not be obvious in this early state, Synfig (and its proprietary predecessors) has been designed from the ground up with animation workflow in mind.
Path-based Gradients, Unlike purely SVG-based vector software, and most consumer-level animation programs, Synfig has full support for gradient paths – gradients that follow along a drawn shape. This allows artists to easily add soft shading to animation without the trouble of painting it onto every frame.
Layers, Synfig supports a multitude of layers of various types; geometric, gradients, filters, distortions, transformations, fractal and a few others.
How to open the apt link? Read this article.