KeyError: '/BitsPerComponent'

[AEgit]

The following file gives me the error "KeyError: '/BitsPerComponent'", when trying to ocr it:

https://app.box.com/s/o1cjmt6y6mn2aqiusmi8g2kjbgw8z5jo

My current workaround is to print the file as a PDF. Then it is possible to ocr it with ocrmypdf.

ocrmypdf -v -l eng Cosgriff1969.pdf Cosgriff1969_ocr.pdf
  DEBUG - os.symlink(Cosgriff1969.pdf, /tmp/com.github.ocrmypdf.il6nhpa6/origin)

________________________________________
Tasks which will be run:


Task enters queue = 'ocrmypdf.triage'
  DEBUG - os.symlink(/tmp/com.github.ocrmypdf.il6nhpa6/origin, /tmp/com.github.ocrmypdf.il6nhpa6/origin.pdf)
Completed Task = 'ocrmypdf.triage'
Task enters queue = 'ocrmypdf.repair_pdf'
  DEBUG -



Original exception:

    Exception #1
      'builtins.KeyError('/BitsPerComponent')' raised in ...
       Task = def ocrmypdf.repair_pdf(...):
       Job  = [.../com.github.ocrmypdf.il6nhpa6/origin.pdf -> .../com.github.ocrmypdf.il6nhpa6/origin.repaired.pdf, <ocrmypdf.WrappedLogger>, [], <_thread.lock>]

    Traceback (most recent call last):
      File "/usr/local/lib/python3.4/dist-packages/ruffus/task.py", line 751, in run_pooled_job_without_exceptions
        register_cleanup, touch_files_only)
      File "/usr/local/lib/python3.4/dist-packages/ruffus/task.py", line 567, in job_wrapper_io_files
        ret_val = user_defined_work_func(*params)
      File "/usr/local/lib/python3.4/dist-packages/ocrmypdf/__main__.py", line 568, in repair_pdf
        pdfinfo.extend(pdf_get_all_pageinfo(output_file))
      File "/usr/local/lib/python3.4/dist-packages/ocrmypdf/pageinfo.py", line 378, in pdf_get_all_pageinfo
        return [_pdf_get_pageinfo(infile, n) for n in range(pdf.numPages)]
      File "/usr/local/lib/python3.4/dist-packages/ocrmypdf/pageinfo.py", line 378, in <listcomp>
        return [_pdf_get_pageinfo(infile, n) for n in range(pdf.numPages)]
      File "/usr/local/lib/python3.4/dist-packages/ocrmypdf/pageinfo.py", line 361, in _pdf_get_pageinfo
        page, pageinfo, contentsinfo)]
      File "/usr/local/lib/python3.4/dist-packages/ocrmypdf/pageinfo.py", line 360, in <listcomp>
        pageinfo['images'] = [im for im in _find_page_images(
      File "/usr/local/lib/python3.4/dist-packages/ocrmypdf/pageinfo.py", line 314, in _find_page_images
        yield from _find_page_regular_images(page, pageinfo, contentsinfo)
      File "/usr/local/lib/python3.4/dist-packages/ocrmypdf/pageinfo.py", line 247, in _find_page_regular_images
        image['bpc'] = pdfimage['/BitsPerComponent']
      File "/usr/local/lib/python3.4/dist-packages/PyPDF2/generic.py", line 516, in __getitem__
        return dict.__getitem__(self, key).getObject()
    KeyError: '/BitsPerComponent'

[jbarlow83]

fixed in v4.2.5

I still got some unusual Ghostscript (9.19) errors of this form

 ERROR -   ./base/gsicc_manage.c:1126: gsicc_open_search(): Could not find srgb.icc 
+ ./base/gsicc_manage.c:1024: gsicc_get_profile_handle_file(): Creation of ICC profile failed

but despite the errors the output file seems to be okay. I don't know what to do with those errors either, since the file it is looking for exists.

Please let me know if you run into anything similar.

[AEgit]

Thanks a lot! Once version 4.2.5 is available via pip3 I'll install it and report if I encounter similar issues.

[AEgit]

Just tried the new version 4.2.5. I get the same errors as you, but, as you mentioned, the output file seems to be fine, so I guess this issue can be considered solved (?).

[AEgit]

Thanks again for this very helpful tool!