After installing Ghostscript and Camelot, I ran the foo.pdf test from Camelot website (https://camelot-py.readthedocs.io/en/master/). (And downloaded the PDF foo.pdf)
It creates a zipped folder with a new PDF inside, AND now both the original PDF and new one are un-openable (examples below). I was expecting a CSV not a corrupted PDF…
So, I’m just not sure what I did wrong… and how to fix it?
I’m assuming the problem has to do with me missing some dependency or maybe Microsoft Edge PDF viewer?, but I have Ghostscript and Camelot?
Any information is appreciated!

Test below from Camelot homepage:

import camelot

tables = camelot.read_pdf('foo.pdf')
print(tables)

#<TableList n=1>
tables.export('foo.pdf', f='csv', compress=True) # json, excel, html, markdown, sqlite
tables[0]

#<Table shape=(7, 7)>
tables[0].parsing_report
{
    'accuracy': 99.02,
    'whitespace': 12.24,
    'order': 1,
    'page': 1
}

tables[0].to_csv('foo.pdf') # to_json, to_excel, to_html, to_markdown, to_sqlite
tables[0].df # get a pandas DataFrame!

This returns a normal result in the VScode terminal when I replace the copy of foo.pdf.
Result:

    <TableList n=1>

When I ask it to print the table it works just fine, but the problem is the output file is corrupted and so is the original file:

Chart = tables[0].df # get a pandas DataFrame!
print(Chart)

Result:

#Test of Ghostwriters installation:

    import ctypes
    from ctypes.util import find_library
    lib = find_library("".join(("gsdll", str(ctypes.sizeof(ctypes.c_voidp) * 8), ".dll")))
    #<name-of-ghostscript-library-on-windows>
    print(lib)

Result:
    C:Program Filesgsgs10.03.0bingsdll64.dll

so I can see the dependency is there..

I can even try to run the Camelot test a second time, but then I get errors below about the PDF being un-readable.

PS B:Py> & b:/Py/.conda/python.exe b:/Py/Camelot_Test.py
Traceback (most recent call last):
  File "b:PyCamelot_Test.py", line 3, in <module>
    tables = camelot.read_pdf('foo.pdf')
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "B:Py.condaLibsite-packagescamelotio.py", line 113, in read_pdf        
    tables = p.parse(
             ^^^^^^^^
  File "B:Py.condaLibsite-packagescamelothandlers.py", line 169, in parse     
    self._save_page(self.filepath, p, tempdir)
  File "B:Py.condaLibsite-packagescamelothandlers.py", line 108, in _save_page
    infile = PdfFileReader(fileobj, strict=False)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "B:Py.condaLibsite-packagesPyPDF2_reader.py", line 1971, in __init__   
    super().__init__(*args, **kwargs)
  File "B:Py.condaLibsite-packagesPyPDF2_reader.py", line 317, in __init__
    self.read(stream)
  File "B:Py.condaLibsite-packagesPyPDF2_reader.py", line 1409, in read
    self._find_eof_marker(stream)
  File "B:Py.condaLibsite-packagesPyPDF2_reader.py", line 1465, in _find_eof_marker
    raise PdfReadError("EOF marker not found")
PyPDF2.errors.PdfReadError: EOF marker not found