Almost daily, headlines proclaim how businesses are cutting costs and improving productivity by using Linux-based, open-source software. But open-source is more than just Linux:
Everyone is familiar with the Mozilla Firefox Web browser, and the audience for the OpenOffice.org office suite continues to grow, but those programs
Stamp Out Viruses
Antimalware software is so essential for today's PCs that it's virtually a usage tax on computing. Thankfully,
Based on the open-source ClamAV engine, ClamWin offers a detection database that includes almost 200,000 malware signatures and is kept current via automatic Web updates. On the downside, ClamWin has no real-time scanning capability--that is, it won't automatically verify files when you load and save them. Instead, you have to scan files and folders manually, so you'll need to be aware of potential virus risks and behaviors.
ClamWin also requires more manual intervention to remove suspicious files than most commercial antimalware packages do, but its scheduled scanning feature, combined with its helpful integration with the system tray and Explorer's contextual menus, make it a viable option for most power users.
Serious Number-Crunching on a Budget
OpenOffice.org provides the most popular open-source spreadsheet application, but a lesser-known alternative called Gnumeric offers more-advanced features. As of the latest version, it's now available for Windows 2000 and later, in addition to Linux.
Users report that Gnumeric is very fast, especially when handling large spreadsheets--sometimes even faster than Excel. It also offers better overall compatibility with Excel documents than OpenOffice.org does, but some popular Excel features, such as pivot tables, have yet to be implemented. On the plus side, scientists and mathematicians in particular will appreciate Gnumeric's advanced, flexible plotting capabilities.
Perhaps Gnumeric's biggest drawback, however, is that the Windows version is still very new. Downloading and installing it can be an arcane process, and Microsoft Office users might find the user interface less polished and user-friendly; people migrating from Excel will doubtless have to dig around and experiment to figure out how some of its features work. Still, if you're looking for a mature, powerful spreadsheet application that won't put a dent in your wallet, Gnumeric's advantages definitely add up.
Document Creation for the Rest of Us
Adobe's Portable Document Format (PDF) has become the de facto standard for document delivery in a variety of industries. For most folks, PDF authoring means installing lots of expensive and elaborate software. What they don't realize, however,
PDFCreator is a lightweight alternative to Adobe Acrobat that makes basic PDF creation as simple as clicking a button. The program acts as an ordinary Windows printer driver, which means it can generate PDF files from any application that can print, and it even supports PDF encryption for secure documents.
What's more, if PDF isn't your bag, it can output to a number of other graphic file formats, including PNG, JPEG, BMP, TIFF, and EPS. Its documentation is a little scanty--the bane of too many open-source projects--but PDFCreator is so easy to use that you'll hardly notice. One caveat: It doesn't work on Vista.
Lean, Lightweight Word Processing
Over the years, word processing software has grown increasingly complex, to the point that Microsoft Word today includes countless features that most
The first thing you'll notice is how much its interface resembles that of older versions of Word--and indeed, AbiWord fully supports the classic Word file format, in addition to HTML, RTF, WordPerfect, OpenDocument, and many others. (Currently, however, Word 2007's .docx format is not supported.)
AbiWord is fast and responsive, and it has all the basic word processing features. Plug-ins provide still more capabilities, including Web-based dictionaries and translation, a grammar checker, and advanced equation editing for the mathematically minded. Murphy's Law suggests that the one feature AbiWord lacks will be the one you need, but whether you run Windows or Mac OS X, you may be surprised at how much such a small program can do.
Professional-Caliber Page Layout
When you need to create documents more complex than a word processor can handle, it's time to turn to a more-advanced page layout and desktop publishing application. Commercial packages routinely cost hundreds of dollars, but Scribus, a free download for Mac OS X and Windows,
Scribus's advanced capabilities include full CMYK color management and support for ICC profiles, in addition to PDF support (including the ability to output press-ready PDFs). It also provides numerous professional-caliber typesetting features--and here, perhaps, is its greatest drawback. For users who lack a graphic design background, Scribus's wealth of typographical and layout controls can be daunting. Worse, some seemingly simple tasks are implemented in a counterintuitive way; for example, when you add a large image to a graphic box on a page, it is automatically cropped, rather than scaled to fit.
If you know what you're doing, there's no denying that Scribus is powerful. Anyone who