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| #!/usr/bin/env python3 | |
| """ | |
| How to use pdfbox's PDFTextStripper class in Python. | |
| """ | |
| import pathlib | |
| import pkg_resources | |
| import re | |
| import urllib.request | |
| import appdirs | |
| import jpype | |
| import jpype.imports | |
| import numpy as np | |
| # Replace with path to pdfbox jar file: | |
| a = appdirs.AppDirs('python-pdfbox') | |
| cache_dir = pathlib.Path(a.user_cache_dir) | |
| file_list = list(cache_dir.glob('pdfbox-app-*.jar')) | |
| def f(s): | |
| v = re.search('pdfbox-app-([\w\.\-]+)\.jar', s.name).group(1) | |
| return pkg_resources.parse_version(v) | |
| jpype.addClassPath(sorted(file_list, key=f)[-1]) | |
| if not jpype.isJVMStarted(): | |
| jpype.startJVM(jpype.getDefaultJVMPath(), '-Djava.awt.headless=true', convertStrings=False) | |
| from java.awt.image import BufferedImage | |
| from java.io import File | |
| from org.apache.pdfbox.pdmodel import PDDocument | |
| from org.apache.pdfbox.text import PDFTextStripper | |
| def extract_text(in_file): | |
| """ | |
| Extract text of PDF file. | |
| Parameters | |
| ---------- | |
| in_file : str | |
| Path to input PDF file. | |
| Returns | |
| ------- | |
| text : str | |
| Extracted text. | |
| """ | |
| doc = PDDocument.load(File(in_file)) | |
| pdf_text_stripper = PDFTextStripper() | |
| text = pdf_text_stripper.getText(doc) | |
| return str(text) | |
| if __name__ == '__main__': | |
| import os | |
| import tempfile | |
| import urllib | |
| # Download sample multipage PDF: | |
| data = urllib.request.urlopen('https://researchtorevenue.files.wordpress.com/2015/04/1r41ai10801601_fong.pdf').read() | |
| fd, name = tempfile.mkstemp() | |
| f = open(name, 'wb') | |
| f.write(data) | |
| f.close() | |
| result = extract_text(name) | |
| os.unlink(name) |
@sfinotti The script can't find the pdfbox jar file - you need to either copy the jar file to the indicated user cache directory (e.g., ~/Library/Caches/python-pdfbox on MacOS or ~/.cache/python-pdfbox on Linux) or update the first few lines to pass the appropriate path to jpype.addClassPath()
@lebedov Thank you for the prompt answer.
The jar file was already there:
finotti@H170:~/.cache/python-pdfbox$ ls -l total 32 -rwxrwxr-x 1 finotti finotti 28694 jun 27 10:26 pdfbox-app-2.0.26.jar finotti@H170:~/.cache/python-pdfbox$
Maybe the jar version ??
@sfinotti The file size looks suspiciously small - check that its SHA256 checksum satisfies what is listed on Apache's website using sha256sum. If it doesn't match, try downloading the jar file again (the script works fine with 2.0.26 on my system).
@lebedov Thank you again. You nailed it !!! The file was corrupted I downloaded it again and it's working now. Thank you !!!
Nice example, almost looks easier than using the CLI!
Hi, I got the following error when trying to use use the code:
`Exception: Java Exception
The above exception was the direct cause of the following exception:
java.lang.ClassNotFoundException Traceback (most recent call last)
File ~/anaconda3/envs/py39/lib/python3.9/site-packages/jpype/imports.py:195, in _JImportLoader.find_spec(self, name, path, target)
193 try:
194 # Use forname because it give better diagnostics
--> 195 cls = _jpype._java_lang_Class.forName(name, True, _jpype.JPypeClassLoader)
197 # This code only is hit if an error was not thrown
java.lang.ClassNotFoundException: java.lang.ClassNotFoundException: org.apache
The above exception was the direct cause of the following exception:
ImportError Traceback (most recent call last)
Input In [39], in <cell line: 14>()
12 from java.awt.image import BufferedImage
13 from java.io import File
---> 14 from org.apache.pdfbox.pdmodel import PDDocument
15 from org.apache.pdfbox.text import PDFTextStripper
File ~/anaconda3/envs/py39/lib/python3.9/site-packages/jpype/imports.py:203, in _JImportLoader.find_spec(self, name, path, target)
201 # Not found is acceptable
202 except Exception as ex:
--> 203 raise ImportError("Failed to import '%s'" % name) from ex
205 # Import the java module
206 return _ModuleSpec(name, self)
ImportError: Failed to import 'org.apache'`