Slideware offers limited features to create that diagram that you want, or to manipulate that image in the way you want. But you don't have to settle for that ugly looking diagram or unwanted photo effect, let the multi-platform Open Source Software help you. Maybe you have heard about The GIMP, which is a similar application to Adobe Photoshop. If you haven't, take a look here. Gimp is free and runs in Windows, Linux, and Mac ... and it is powerful. It is so powerful that it can be intimidating. From all of the free resource to learn how to use it, or to bring it to the next level I recommend these two sites:
- Grokking the GIMP is a book available online and can be downloaded.
- Meet the GIMP is an excellent blog on GIMP with tutorials and articles.
|Comparison between bitmap and vector-based images. Image from Wikipedia.|
The image on the left has been pixelated. It has happened to all of us trying to make an image bigger or trying to zoom-in. This is characteristic of bitmap images like photograph in jpeg format. A tip to avoid using pixelated images in your presentation is to use images as large or larger than your presentation canvas. The image on the right is a scalable vector graphic (svg), and as it exemplifies , these images scale - increase their size - with no distortion; zooming-in isn't a problem either. When creating a diagram you need a program that handles vector graphics. Luckily there as fine free application for doing this.
Inkscape is an open source vector graphics editor. Click here to see what Inkscape can do. To get started with it download it and follow the tutorials. If you want to learn more this site:
- Screencasters by Heathenx and Richard is a site devoted to Inkscape with video tutorials for novice artists.
- Blendernation is the place where the Blender comunity meets.