System · Handy Tools

Feb 24, 2024 | Tech Software

Index
Index

Image

ImageMagick bash

Video

  • ffmpeg:
    • install:
      sudo apt install ffmpeg
    • change format:
      ffmpeg -i input.mp4 output.avi
    • remove audio:
      ffmpeg -i input.mp4 -an output.mp4
    • make the video speed 3.14 times of its original:
      ffmpeg -i input.mp4 -filter:v "setpts=PTS/3.14" output.mp4
    • cut the video from 00:01:00 start time to 00:02:00 end time:
      ffmpeg -ss 00:01:00 -to 00:02:00 -i input.mp4 output.mp4

PDF

GhostScript bash
PDFJam bash