Converting art to a single bitmap inside CorelDRAW

Written by Jeff Harrison
May 21, 2015

A discussion of technical considerations when converting art to a single bitmap inside CorelDRAW. Also includes a demonstration of how overprinting black before converting can prevent white fringing and registration problems later.

300 DPI is OK for images, but if text
is flattened along with the image for something like business cards, I’d give 600 DPI a try. The reason: the integrity of the
fonts on small text is going to be better. It takes a little longer to
RIP at their end, but as you can see below, I think the extra 10-20
seconds is well worth it. Most professional color lasers output at 2400 DPI these
days, so IMO there’s no reason not to send these devices something
better. The large companies gang-run lots of different cards at once, I
suspect at 2450 DPI.

The most professional way is to preserve fonts as vector shapes (whether pure fonts or as curves). Thoughtfully flattening bitmap items under any text curves can dramatically simplify the file and prevent surprises. Then text or other curves come out at the highest resolution of the device.

On the other hand, I know that pre-press is a thankless task. If a job outputs well, no one says much. If there is even a tiny problem, the world collapses on our heads. This is why I can see why some shops request one flattened bitmap of the project, for sheer output reliability.

Users sometimes complain about visible rasterization, and why it can exist on vector shapes. They don’t know that those problems are usually related to CorelDraw’s Rendering Resolution for certain effects such as Tranparencies, Lenses, and Drop Shadows. That’s another story, for another movie. These issues are different, and are more or less noticeable based on the dimensions of a project.

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Jeff Harrison

Jeff Harrison is a media "Jack-of-all-trades", familiar with most of the major media applications on the Windows platform. Whether it's 2D/print, 3D, audio, video, or web-related - he's working on mastering everything that comes his way. He's a past Alpha and Beta tester for Corel, and has instructed students from all over the world. He runs the popular site, the #1 place for CorelDRAW macros. Also check out his youtube page, and his gallery at

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