DCT Decoding Error

[admercs]

I'm getting an error from the pdfreader depdendency:

$ document.pdf
ERROR:root:Partially decoded. Filters applied: []
Traceback (most recent call last):
  File "/HOME/quicksand/lib/python3.6/site-packages/pdfreader/types/native.py", line 55, in apply_filter_multi
    binary = apply_filter(fname, binary, params)
  File "/HOME/quicksand/lib/python3.6/site-packages/pdfreader/filters/__init__.py", line 14, in apply_filter
    return decoder.decode(binary, params or {})
  File "/HOME/quicksand/lib/python3.6/site-packages/pdfreader/filters/dct.py", line 5, in decode
    raise NotImplementedError('DCTDecode')
NotImplementedError: DCTDecode

Any idea how to resolve it?

[tylabs]

3d party library pdfreader uses the PIL library to process DCT encoding, you may need to install that and reinstall the latest pdfreader. See source here https://github.com/maxpmaxp/pdfreader/blob/5757c830757236f7f1fc17a9275c6993967ecf78/pdfreader/filters/dct.py#L4