PyMuPDF-1.22.2: extractText show unreadible output from specific pdf

[zdenop]

Describe the bug (mandatory)

I am not able to get a text from this specific pdf. Pdf is correctly displayed by Adobe Reader (also in Chrome, Firefox)
AD-3.HANO.pdf

To Reproduce (mandatory)

import fitz

fname = "AD-3.HANO.pdf"

with fitz.open(fname) as doc:
    for page_id in range(doc.page_count):
        page = doc.load_page(page_id)
        content = page.get_textpage()
        print(f"Page {page_id1}:")
        print(content.extractText())

Expected behavior (optional)

Get text out (as with other pdf files)

Screenshots (optional)

Your configuration (mandatory)

• Windows 10 64bit
• Python 3.9.13 64bit, Python 3.11.2
• pymupdf-1.22.2 , installation method: (wheel).

[JorjMcKie]

This is no bug, but a missing feature of the font - intended or not.
Moving this to "Discussions" in case you have more questions.

[JorjMcKie]

The PDF uses non-standard encoding which makes it impossible to extract text - not only for (Py-) MuPDF, but also for Adobe Acrobat, Nitro 5, and other PDF viewers.
Confirm this by selecting some text and paste it in some word processor document.

Please be aware that showing text and extracting it are feature that do not necessarily be connected - as is the case here.
So all you can do is OCR-ing.