1, sometimes there are shadows or outlines on the periphery of the picture, which will have unexpected effects;

2. Regarding patterns, tif format is mainly used for printing, and its high quality cannot be reflected in ppt. Jpg can be used for photos. Schematic diagram I recommend bmp format, draw directly in the windows brush according to the required size, without scaling. All the results are vector effects. Compared with pro, related arrow elements can be copied directly from word.

3, the flow chart, just draw it with viso, the earth knows;

4. The animation method of presenting pictures in 4.ppt is best to be concise to two or less, or that sentence, low-key and simple; .