Guide:How do you select all files in a directory for batch conversions?

1. Click "Add" button from the main interface.A windows file dialog will pop.
2. Select the last file in the directory by clicking it with the left mouse button.
3. Hold the Shift key down, then click on the first file in the directory.
4. This will select a range of files.
5. To add/remove a single file from a group of selected files, hold the Ctrl key down and click on that file.