" tab under the File pane to crop your file.
Drag the frame to crop the video.
Adjust the value of the four positions: Left, Right, Top and Bottom
While cropping your video, you can refer to the "Cropped Size" and "Cropped Aspect Ratio" for the size and aspect ratio of the cropped video so you can crop the appropriate video for the conversion.
Select All: Click to go back to select the whole video.
Add image watermark: Check this option to add watermark to the video and edit it.
Browse: Click this button to add an image from your hard disc as the watermark.
Transparency: Select "None" if you don't want to set any color to be transparent. Select "Select" and you will see the Transparency window popped up where you can do the transparency settings. See the figure below:
Clcik a palce on the left image with your mouse cursor to select the color you want to make transparent. The selected color will be shown lower left part of the window. You can also set the transparent color by setting the three color values (Red, Green and Black) and selecting the tolerance and alpha (transparency degree).
Origin: Click to open the drop-down menu to select the origin position for the added watermark.
Offset: Set the offset values of the watermark from the origin. You can more accurately and freely set the position of the watermark using this offset setting.
Original aspect ratio: The "hold down" status of this button keeps the original aspect ratio of the watermark image.
Apply: Click this button and the current watermark will be added to all the selected files with the same position on them.
