Export validation let you determine whether video exported from DW Spectrum been modified since being exported. An internal watermark is checked to verify the file is intact. Note that if you try to check the validity of a local file that was not exported, the watermark will be "not found".
To check the watermark on an exported video
1.Open the desired video in layout.
2.Open the item's context menu and select Check File Watermark (Alt+C).
3.A progress dialog will display during the validation. If the file is in its original state, the check will succeed (Watermark Matched):
4.If any modifications took place, the check will fail (Invalid Watermark):