How does a PDF file draw a freeform callout?

How does a PDF file draw a freeform callout?

1, we can search the relevant PDF editor software in Baidu to achieve the corresponding PDF file editing. The effect of opening a PDF file as shown in the figure.

2, find the toolbar in the PDF file Editor, find the Annotation tool in the toolbar, click on the Annotation tool, and select Add Polygon tool in the Drop-down tool menu.

3, add the Oval tool, you can appear in the PDF file page on the right side of the polygon tool properties of the page content, we can in the second polygon style, etc. to set.

4, if you cannot find the right Polygon tool properties, we can also through the tool bar in the Polygon tool click the right mouse button, into the annotation style palette, color and so on to set the content

5, set content such as border.

6, there are width and so on.

7, after setting all the style content, we can in the PDF file page content to choose to add the polygon to express the content diagram row.