What is Placeholder?

Placeholder, also called PlaceHolder in English, is usually used in scenarios where actual content is not required but its position needs to be retained, such as: text placeholders, picture placeholders. This tool provides the function of generating placeholder pictures. The generated placeholder picture is in SVG format. The process of generating SVG is completed on the client (browser), which is extremely fast, so this tool is also called SVG placeholder tool.
Placeholder is mainly used in webpage (APP) prototype design, PPT presentation, operation instructions and other scenarios. The meaning conveyed is: what kind of picture will be placed here, and the size is xxx pixels. In the above scenarios, using placeholders can avoid the time cost of finding pictures every time.