Batch process: insert text on all pages of a TIF file

[Luigi]

Hi.

I have several TIF files, each with 12 pages. I'd like to add the filename at the top edge of all pages.
But when I start the batch, it shows:

Processing file: Path+Filename1
Error! Can't load: Path+Filename1 (Page 1)
Error! Can't load: Path+Filename1 (Page 2)
Error! Can't load: Path+Filename1 (Page 3)
....
Processing file: Path+Filename2
Error! Can't load: Path+Filename2 (Page 1)
Error! Can't load: Path+Filename2 (Page 2)
Error! Can't load: Path+Filename2 (Page 3)
....

What am I doing wrong?

And, since the filename is always different I can only set a starting point (X-Coord/Y-Coord). Setting Width and Height doesn't make sense, since it would squeeze each filename into these boundaries..or am I wrong?

Thorsten