The Rasterbator

July 25, 2009

I’m not sure of the story behind the product name, but I think you’ll receive great pleasure working with the program. One of the techniques that is popular these days is the halftone effect. The Rasterbator takes a supplied bitmap and creates a massive halftone of the file and spits it out in PDF format. You can either do this directly on the Web site or you can download a standalone version to do all processing on your own machine.

The way it is designed is to create a multi-page PDF with tiled images of the whole photo. Samples shown on the Web site have images that fill an entire wall. If you want, you can also type in a custom page size. This would be ideal for output on wide-format printer or simply to get the resulting image all on a single page. Part of the process also allows you to choose the maximum size of the halftone dot.

OK, it sounds pretty cool so far. Now to tell you about the last feature that will blow you away. The PDF file created by The Rasterbator is made up of a very large number of vector ellipses of varying sizes and possibly various colors. I imported a page I created back into CorelDRAW and there were over 251,000 curves! I’ve got to admit that CorelDRAW was pretty slow with that many objects on the page.

So, here is the process to create some cool designs using halftones. Design whatever you want in CorelDRAW or Corel PHOTO-PAINT. Export the resulting design to a fairly large bitmap. Run that bitmap through The Rasterbator. Import the resulting PDF back in to get a vector-based halftoned graphic. Did I mention that The Rasterbator is free? If you create something cool, please post a comment and let us all know about it.

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Foster D. Coburn III

Foster D. Coburn III is author of 13 best-selling books on CorelDRAW and has been a contributor to numerous technology and graphics-related magazines. Foster has taken many projects, including this Web site, from the early design stage through to a finished piece. He has been a featured speaker at many graphics conferences. His first Web site was built in 1995 and he has been working exclusively in WordPress since 2013.

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