Paste Options in PowerPoint 2010
Paste Options in PowerPoint 2010 are available to paste your clipboard in different formats. Depending on the type of content you have in the clipboard, the menu under Paste will show you different options. You can use the destination style, or choose to keep source formatting, embed, picture or keep text only.
For example, if you copied a text from a web page (in Chrome or any other browser) and want to paste it just as text instead of a rich text format in your slides, you may choose to Paste using the Keep text only. But if you want to keep the HTML formatting then the Keep source formatting option may be more suitable for this purpose.
Paste Special in PowerPoint 2010
Another way to Paste content in PowerPoint slides is using the Paste Special feature. This feature is not only available in PowerPoint but you can find it in other MS Office products and eventually in other non-Microsoft applications. By using Paste Special you can paste the clipboard in many different formats. For example, the content we copied here can be pasted in HTML Format (as a web page), Pictures (PNG, GIF, JPG), or as an independent bitmap (BMP).
Depending on the type of content and the usage of the content in your slides, you may choose from one or other format. For example, for pictures it is better to use a PNG if you want to keep transparency, but if you want to keep your image optimized for size then you may opt for JPG format.