... process and voice can be saved synchronously17ReviewReview current page, review the whole processes of drawing or editting18Empty ... formats like: .DS, BMP, JPG, GIF, PNG, HTML, PDF, PPT etc21Measurement toolConvenient for demo and measuring various ... insert various files like BMP, JPG, GIF, PNG, HTML, PDF, PPT formats24Operation systemFully support operation systems like Windows2000 ...