Seamless editing is where you seem to know what you are doing with your editing, but the more and more you get deeply involved with the project you get less aware of what is happening.
Slideshow?
"premiere" project refers to the editing application: Adobe Premiere from Adobe Creative Suite of applications.
Adobe Premiere is a video editing program that lets you edit together multiple video clips or frame sequences with transitions, effects, or audio tracks to create a single video that can be rendered out in various formats.
It is an advanced video editing program.
Digital Video Editing
Adobe Premiere Pro
In my opinion, the best video editing software would be Adobe: Premiere Pro CS5.
An Adobe Premiere video editing project file would usually have a .ppj extension.
Adobe Premiere Pro and Adobe After Effects.
Invisible, or seamless editing means a good job was done deleting and the bad parts and selecting the shots with the best angle , and merging from scene to scene in a coherent, non-disruptive manner.
Adobe Premiere is a great product for video editing, along with Final Cut Pro and Avid.