Are you looking for the fastest and easiest way to crop FLV files? Try this super simple and yet so powerful FLV cropper - Wondershare Filmora (originally Wondershare Video Editor). With it, you can crop the screen size of the FLV video at will, so you can remove black bars, fit a different screen, etc. Find the ways to crop AVI, MP4, MKV, XVID files here.
Feel free to drag the screen to adjust the screen area of the video and preview effects in real time. When finished, save it and export the file with a click. It's very easy, isn't it? The edited video will retain 100% of the original video quality.
1 Add FLV videos to this FLV cropper
After you run it, just choose"16:9 Widescreen" or "4:3 Standard" option to enter into its editing interface. After that, you need to load your local FLV files to this great FLV cropper. To do it, just drag and drop the FLV files you want from the computer to this app's album or click the "Import" option in the top-left corner of the interface to import them.
2 Crop FLV files
You're provided two different ways to crop FLV files. One is double click the FLV files on the Timeline and then on the pop-up window, hit the "Crop" button. The other is to right click the file to pop up a submenu where you need to choose the "Crop" option.
When you open the Crop interface, press the "Play" button to play the video first. And then drag any one corner of the dashed rectangle on the left window and move it to select your wanted screen area. Immediately, you can see the effect on the right preview window. At last, click "OK" to save it.
3 Export the new FLV file
In this step, you can go to "Format" and select FLV as the output format in this app's output format list by pressing the "Create" button. At this time, you can also set video resolution, frame rate and bit rate etc. When it's ok, just hit the "Create" button again to let this app do the rest thing. According to the output path you've set, you can find the new FLV file.
Video tutorial on how to crop videos by Wondershare Filmora