Errors IFD-0017 and IFD-0018 raised incorrectly?

[marhop]

Hi,

Validating the attached file (source) with DPFManager 3.5.1 using the default (Baseline TIFF 6.0) profile raises errors IFD-0017 "Incorrect Extra Samples Count" and IFD-0018 "Unnecessary Extra Samples" in IFD1.

However, this file has no ExtraSamples field at all. Which is OK because it has no extra samples. It is a very simple bilevel (black/white) TIFF file with PhotometricInterpretation = 0 and no SamplesPerPixel field because the default value (1) given in the TIFF 6.0 specification is appropriate.

To summarize: one sample per pixel (default), one bit per sample (default), no extra samples.

What do you think? Am I missing an error in the file or is this a bug in DPFManager?

Thanks,
Martin