When I added up a 26MB MP4 H.264 file to the Freeconvert video compressor, and select to scale back the dimensions by 1%, I finally got a 36MB compressed file which was larger than the supply. Another slightly vexing problem is the free Freeconvert video compressor does not let you compress video with a dimension bigger than 1GB. The good thing is, though it would not allow you to dig into settings a lot additional, iMovie permits you to assign totally different quality grades to your video when exporting. To put it plainly, you presumably can throw up a video to iMovie, skip the modifying steps, and choose up a comparatively lower decision, bitrate, and high quality grade to get the job accomplished.