Extracting text from PDFs with encodings- Identity-H, Roman fails, gives a blank response.

[nishantkumar21stjul]

Describe the bug

Extracting text from PDFs with encodings- Identity-H, Roman fails, gives a blank response instead of giving text from PDF [Sample pdf-
5092.CID_Overview.pdf].

Output-

Sample Code-

import pdfplumber
def pdfProcessing_AgendaExtraction(pdfPath):
    bold_content = []
    agendaList = []
    with pdfplumber.open(pdfPath) as pdf:
        totalpages = len(pdf.pages)
        #print(totalpages)
        for page in range(0,totalpages-1):
            text = pdf.pages[page]
            #print(pdf.pages[0])
            #print(text)
            clean_text = text.filter(lambda obj: obj["object_type"] == "char" and "Bold" in obj["fontname"])
            #print(clean_text.extract_text())
            bold_content.append(clean_text.extract_text())

    #print(bold_content)
    for item in bold_content:
        #print(item)
        #print("*"*20)
        if item.startswith("Agenda"):
            agendaList.append(item)
        else:
            if item.startswith("Annexure"):
                break
            #continue

    #print("-"*50)
    return agendaList

pdfPath = "C:\\Users\\nkumar34\\Desktop\\demo\\demo\\data\\5092.CID_Overview.pdf"
data = pdfProcessing_AgendaExtraction(pdfPath)
print(data)

After troubleshooting and bit of research, found below causes (A similar issue has been reported for a different library [LINK]) -

• Encoding Identity-H, Roman causes issues. The same code has been validated with ASCII encoding and it works fine.

Have you tried repairing the PDF?

Yes, didn't worked.

Expected behavior

Output should extract all the bold text mentioned in the PDF document

Actual behavior

Output is an Empty List instead of a list of extracted bold texts.

Environment

• pdfplumber version: 0.11.0

• Python version: 3.11.6

• OS: Windows 10 Enterprise

[jsvine]

As far as I can tell from the code shared above, the blank result here does not come from a problem with pdfplumber but rather the fact that the attached PDF does not contain the phrase "Agenda". If I've misunderstood, please update this issue with a simpler example that demonstrates the bug you're seeing.