With vjMixer, you can add text subtitle and watermark to the video.
In the Subtitle&Watermark Dialog, click the blank area, then input the text in the edit box. By clicking the Effect button, you can speciafy the font effect.
It also allows you to special the text position. Just click the Preview button, then the Preview dialog will popup. Here you can drag the text to where you want it to display.
After setting the text effect, check the Checkbox before the text, then click the Play button to add the text to the output.
To add watermark, choose the watermark dialog. Click the File button to choose the image file, then choose the number postion, which stands for top-left, top-right, bottom-left, bottom-right.
Alternatively, you can click the Preview button to drag the picture to set the position precisely.