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Failed extracting text from French texts #524

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martosc opened this issue Nov 19, 2019 · 5 comments
Closed

Failed extracting text from French texts #524

martosc opened this issue Nov 19, 2019 · 5 comments
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is-bug From a users perspective, this is a bug - a violation of the expected behavior with a compliant PDF workflow-text-extraction From a users perspective, text extraction is the affected feature/workflow

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@martosc
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martosc commented Nov 19, 2019 •
edited by MartinThoma
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I am trying to get the text from a pdf written in French. I am having trouble with some symbols from the text (é. û, ç, etc).
I am reading the documentation of the function extractText() and I see it says "This works well for some PDF files, but poorly for others, depending on the generator used." so I don't know if the poor behaviour I am getting is because of the lack of choosing a generator.

I am using the next piece of code:

from PyPDF2 import PdfFileReader

reader = PdfFileReader("example.pdf")
page = reader.getPage(2)
page.extractText()

Should I choose a generator in any part of my code or this is normal behaviour for certain pdfs?

Thank-you in advance.
@martosc martosc closed this as completed Dec 11, 2019
@hamzaAmier
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hamzaAmier commented Jan 3, 2020 •
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Hello,
you have to put #coding: utf-8 in the begging of your script.

i don't know if you can extract this character "œ", because i can't extract with using the same method !!

@martosc
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martosc commented Jan 4, 2020

Could you be more explicit? In which line of the code are you referring to?

@martosc martosc reopened this Jan 4, 2020
@hamzaAmier
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hamzaAmier commented Jan 7, 2020 •
edited by MartinThoma
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#coding: utf-8
from PyPDF2 import PdfFileReader

reader = PdfFileReader("example.pdf")
page = reader.getPage(2)
page.extractText()

@MartinThoma
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#464 might help

@MartinThoma MartinThoma added the is-bug From a users perspective, this is a bug - a violation of the expected behavior with a compliant PDF label Apr 8, 2022
@MartinThoma MartinThoma added the workflow-text-extraction From a users perspective, text extraction is the affected feature/workflow label Apr 16, 2022
@MartinThoma MartinThoma mentioned this issue Apr 16, 2022
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@MartinThoma
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#924 probably fixed this. I'll make a release today. Please let me know if you still encounter this issue with PyPDF2==2.1.0.

MartinThoma added a commit that referenced this issue Jun 6, 2022
@MartinThoma
REL: 2.1.0
4e44122 
The highlight of the 2.1.0 release is the most massive improvement to the
text extraction capabilities of PyPDF2 since 2016 🥳🎊 A very big thank you goes
to [pubpub-zz](https://github.com/pubpub-zz) who took a lot of time and
knowledge about the PDF format to finally get those improvements into PyPDF2.
Thank you 🤗💚

In case the new function causes any issues, you can use `_extract_text_old`
for the old functionality. Please also open a bug ticket in that case.

There were several people who have attempted to bring similar improvements to
PyPDF2. All of those were valuable. The main reason why they didn't get merged
is the big amount of open PRs / issues. pubpub-zz was the most comprehensive
PR which also incorporated the latest changes of PyPDF2 2.0.0.

Thank you to [VictorCarlquist](https://github.com/VictorCarlquist) for #858 and
[asabramo](https://github.com/asabramo) for #464 🤗

New Features (ENH):
-  Massive text extraction improvement (#924). Closed many open issues:
    - Exceptions / missing spaces in extract_text() method (#17) 🕺
      - Whitespace issues in extract_text() (#42) 💃
      - pypdf2 reads the hifenated words in a new line (#246)
    - PyPDF2 failing to read unicode character (#37)
      - Unable to read bullets (#230)
    - ExtractText yields nothing for apparently good PDF (#168) 🎉
    - Encoding issue in extract_text() (#235)
    - extractText() doesn't work on Chinese PDF (#252)
    - encoding error (#260)
    - Trouble with apostophes in names in text "O'Doul" (#384)
    - extract_text works for some PDF files, but not the others (#437)
    - Euro sign not being recognized by extractText (#443)
    - Failed extracting text from French texts (#524)
    - extract_text doesn't extract ligatures correctly (#598)
    - reading spanish text - mark convert issue (#635)
    - Read PDF changed from text to random symbols (#654)
    - .extractText() reads / as 1. (#789)
-  Update glyphlist (#947) - inspired by #464
-  Allow adding PageRange objects (#948)

Bug Fixes (BUG):
-  Delete .python-version file (#944)
-  Compare StreamObject.decoded_self with None (#931)

Robustness (ROB):
-  Fix some conversion errors on non conform PDF (#932)

Documentation (DOC):
-  Elaborate on PDF text extraction difficulties (#939)
-  Add logo (#942)
-  rotate vs Transformation().rotate (#937)
-  Example how to use PyPDF2 with AWS S3 (#938)
-  How to deprecate (#930)
-  Fix typos on robustness page (#935)
-  Remove scripts (pdfcat) from docs (#934)

Developer Experience (DEV):
-  Ignore .python-version file
-  Mark deprecated code with no-cover (#943)
-  Automatically create Github releases from tags (#870)

Testing (TST):
-  Text extraction for non-latin alphabets (#954)
-  Ignore PdfReadWarning in benchmark (#949)
-  writer.remove_text (#946)
-  Add test for Tree and _security (#945)

Code Style (STY):
-  black, isort, Flake8, splitting buildCharMap (#950)

Full Changelog: 2.0.0...2.1.0
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