The difference between bitmaps and vector graphics: judging usage from pixels and paths
Bitmaps record pixel colors, and vector graphics describe outlines with geometric shapes. Photos are usually suitable for bitmaps, and flat logos and patterns that need to be scaled are often suitable for vectors; the two types solve different needs and are not substitutes for each other.
Determine the problem and applicable conditions first
When you zoom in on a bitmap, you can see the pixels, and when you zoom in on a vector path, it re-renders according to the curve. However, SVG can contain bitmaps, and the file suffix does not prove that all content consists of paths; the object type should be checked in the design software.
Process and check in order
- Decide first whether you want to display a photo, modify the outline, or create a scalable logo.
- Check whether the source file has a real path, and give priority to existing design drafts.
- When you only have a bitmap and you really need a path, trace and check the details.
Check the finished result
Smooth edges do not prove that the text is accurate, nor does the existence of a path prove that it is suitable for printing. Accept it for actual size and purpose, and don't delete your only high-quality original just because the file has been turned into an SVG.
SVG format basis and reference materials
SVG can contain both vector shapes, images, and text. Therefore, a file name ending in .svg does not alone prove that the original image has been converted to an editable path.W3C SVG 2 Specification: SVG Graphics Objectdescribes these object types.
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