Troubleshooting

No videos appear

Confirm the videos are directly inside the selected folder. BWV does not scan subfolders, and it only lists its supported video extensions.

The watermark button is unavailable

Choose an input folder with at least one video, set a separate output folder, and provide watermark text, a logo, or both.

A logo cannot be used

Choose an existing PNG, JPG, JPEG, or WebP image. For best results, use a transparent PNG logo with clear contrast.

A file fails

Try a different source video first. Some files with a common extension contain damaged or uncommon streams that FFmpeg cannot decode. Ensure the output folder is writable and that there is enough free space for a new MP4 copy.

The mark is too small or too subtle

Increase text size or opacity, or select Moving for proof copies. Test a short representative video before watermarking a large folder.