When composing a film, you almost never need an entire clip. You set the frames you want to use by using in- and out points. The in point is the first frame of the clip that you want to use. The out point is the last frame of the clip that you want to use.
When setting in and out points, frames are not removed from the hard disk. Instead, the part of the clip to be included in the movie is isolated.
In and out points function as a window for the clip, in which only the frames between the in point and the out point are displayed. You can move in and out points as desired to include cropped frames in the selection.
You can crop frames at the beginning or end of a clip. To crop frames from the middle of a clip, first split the clip (by making two parts of the original clip). You then crop the unwanted frames from the end of the first new clip or the beginning of the second.
You can crop a clip in the Preview Window, the Monitor panel, the Quick View Timeline, or the Professional View timeline. You can retrieve frames from source clips (clips that have not yet been placed in the Quick View timeline or the Professional view timeline) using the Preview window. You can retrieve frames from clips in the Timeline of the Quick View or the Timeline of the Professional View.
How to crop a video in premiere
You can create high-quality, well-finished video files by deleting unwanted portions. You can efficiently incorporate fuzzy, jerky, and unwanted bad portions into your video file in Adobe Premiere Elements. You can edit the video files easily and quickly and adjust them in detail.
Smart Trim allows you to remove poor-quality portions from a video file. Smart Trim can be executed manually or automatically. You can trim clips from the Quick View timeline or the Professional View timeline.
Smart cropping can be applied automatically or manually. The manual smart crop mode is the default mode. In this mode, you can specify the options that determine the parts to be cropped. In the Smart Trim mode, Premiere Elements automatically determines the parts to be cropped. You can indicate whether you want to delete or retain it.
To enable Smart Trim, click the Action Bar and select Smart Trim from the Tools panel. By default, the manual smart crop mode is enabled.
Premiere elements analyzes the clip and highlights the parts of the clip to be trimmed. The marked sections depend on the values set for the quality level options. The parts to be cropped are marked with bar patterns. With the combination of quality and interest sliders, you get a much better output.
Do one of the following to select trim sections in a clip:
Double-click the clip in the Professional View timeline to select all the cropped parts in a single clip.
Drag a selection frame around the selected clips in the Professional View timeline to select all the sections to be cropped into multiple clips. Right-click or hold down Ctrl and click on the sections to be cropped and choose Select All.
To select all the sections to be trimmed in multiple clips in the Quick View Timeline or the Timeline of the Professional View, select Ctrl-A. Right-click or hold down Ctrl and click on a section> Select All.
The selected sections to be cropped are highlighted. If you select a section to be trimmed, all sections to be cropped will have a blue stripe pattern.
Crop in the Timeline of Professional View
You can remove or retrieve trimmed frames at either end of a clip by dragging the edge of the clip into the professional view timeline. The monitor panel displays the frame when you change the clip in or out of the clip while dragging, making it easier to find the desired frame. When another clip is adjacent to the edge that you crop, the frames of both clips appear side by side in the Monitor panel.
The frame on the left (the out point) is at an earlier moment and the frame on the right (the in point) is at a later moment. Next clips and blocks with empty space will be shifted in the Professional view timeline when you drag the edge of the clip.
Crop In the preview window
You can preview each clip you want and set up new in and out points for the clip before you add the clip to the timeline of the Professional View or the Quick View timeline. For example, you can view the clips to determine their quality or to trim the unusable parts before adding them to other clips. You can preview and crop clips in the preview window.