Before start, please free downloadfree download the software on your PC.
Step 1. Launch the Video Converter and Import Your Video
Open HD Video Converter Factory Pro. You will see there are five function models. Go to “Converter”. On the new window, click “Add Files”, select and import the video you want to upload to Twitter.
Tips. You can check out the video information by clicking the info icon as shown in the picture. Then you only need to find out and alter these incompatible settings for Twitter, instead of changing all related parameters.

Step 2. Convert Video to MP4
Click the big format icon on the right side and choose “MP4” under the “Video” tab. HD Video Converter Factory Pro uses H.264 AAC for MP4 video container by default.

Step 3. Change Video Resolution, Bitrate, Frame rate, Aspect Ratio, etc.
Go to “Parameter Settings” under the format icon. Next, change video resolution, bitrate, frame rate, aspect ratio, audio channels, and more settings according to the Twitter video specs.

Step 4. Shorten the Video Length
Click the Trim icon below the imported video and you will be directed to a new window in which you can cut the video to be shorter than 140 seconds: Drag the blue sliders to set the start point and the end point, and the duration time will be displayed synchronously, hit “Trim” to cut the clip from the video, and click OK to save the change.

Step 5. Compress the File Size
In fact, through the steps above, the video file size will be reduced consequently, yet if you expect a smaller file size, you can also take advantage of the Batch Compression setting on the bottom portion and drag the slider to the right to increase the compression ratio and reduce video file size. The changes of the output file size are synchronous with the compression ratio.
Step 6. Export the Video
Hit the small triangle icon and set the location for saving the converted video. Then, click “Run” to finalize and process.
