PDFPlumber - A filter to remove superscipt

[cloudyyoung]

Recall how PDFPlumber extracts superscript text as a part of the cell text, like "Assignment 11".

tables = pdf.pages[1].extract_tables()

for table in tables:
    for row in table:
        print(row)

---

Programmatically using a filter on the page can get rid of superscript texts.

def filter(obj):
    if obj["object_type"] == "char" and obj["size"] >= 7.0:
        return True
    elif obj["object_type"] != "char":
        return True

When the object is a character, the normal size character size around 7.200000099000022 but the superscript text is only 6.000000082499923. Excluding specific characters by their size can be used.

Dictionary data structure of a "char":

Now:

# print table
def filter(obj):
    if obj["object_type"] == "char" and obj["size"] >= 7.0:
        return True
    elif obj["object_type"] != "char":
        return True

tables = pdf.pages[1].filter(filter).extract_tables()

for table in tables:
    for row in table:
        print(row)

We can extract table to this better version:

This is not the only approach to realize for the filter, condition on the y0 and y1 might do it too.