What this tool does
- Without re-encoding: the picture and sound of the clip are those of the original file, byte for byte. Instant, and lossless.
- THE GAP IS SHOWN. The cut steps back to the previous keyframe, and the screen says by how much — a tool that steps back a second without saying so looks broken.
- The sound follows the picture: it is aligned on the same keyframe, otherwise the clip would be out of sync.
- The end does not step back: cutting one frame late is invisible, cutting one frame early clips a sentence.
What it does not do: The cut does not land on the millisecond: it lands on the preceding keyframe, almost always less than two seconds away. Cutting exactly would mean re-encoding the beginning, therefore degrading it and waiting. We would rather say so. MP4, M4V and MOV files are read; MKV, AVI and WebM are not.
Nothing is uploaded. Cut your network connection once this page has loaded: the tool keeps working. How to check it yourself.
The other tools
- Merge PDFs: Several files, one document, in the order you decide.
- Organize pages: Reorder, rotate, delete, duplicate: the whole plan.
- Extract pages: Pick pages, take them out into a document of their own.
- Delete pages: Remove pages while looking at them, and they do not survive under the file you get.