User discussion for the Python PDF-to-text tool PDFMiner ()

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rimilythomas | 19 Feb 2013 10:16

PDF To xml convertion

Hii all

Iam new to this and also python.Please help me in how to use pdfminer to convert pfd to xml.

How to use the command.

i have used a comand:pdf2txt.py -o output.xml -t xml samples/xyz.pdf

and it gave me somw error <open file 'xyz.pdf, mode rb at 0x016bcbd0

Thanks to all

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rimilythomas | 19 Feb 2013 10:05

pdf to xml

how to start of with it. wat is the command that is used to convert ibto xml.

I have tried the command:pdf2txt.py -o output.xml -t xml samples/xyz.pdf

where xzy.pdf i have placed in sample folder of pdfminer.

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Orion Osborn | 14 Feb 2013 00:20

pdfminer module error

I keep getting the following error when I attempt the test at http://www.unixuser.org/~euske/python/pdfminer/index.html#source

orion <at> socrates:/usr/lib/pymodules/python2.7/pdfminer$ ./tools/pdf2txt.py samples/simple1.pdf

Traceback (most recent call last):

File "./tools/pdf2txt.py", line 3, in <module>

from pdfminer.pdfparser import PDFDocument, PDFParser

ImportError: No module named pdfminer.pdfparser

orion <at> socrates:/usr/lib/pymodules/python2.7/pdfminer$

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guyga123 | 18 Feb 2013 22:23

Unreadable fonts extracted

I tried to use pdf2txt to extract text from a pdf bill and got unreadable fonts.

debug log and output xml generated can be downloaded from:

out.xml - ~3MB
https://docs.google.com/file/d/0B00aqeKcQExYbnFnUHJfREJ0ZXM/edit?usp=sharing

debug.log - 27KB
https://docs.google.com/a/betterbill.com/file/d/0B00aqeKcQExYWlJDTnpyeDFQRkE/edit?usp=sharing

pdf has some private data, but if necessary I can share it as well or send it directly.

I tried googling and found:
http://stackoverflow.com/questions/12675471/pdfminer-gives-strange-letters

not sure if its the same issue,

any direction or hint will be appreciated,

Thanks in advance,
Guy

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Derek Dohler | 14 Nov 2012 12:50

pdf2txt.py fails with AssertionError in layout.py

Hi,

I'm having trouble getting pdf2txt.py to work on the attached file; it fails with an AssertionError unless I turn layout analysis off. These are automatically-generated files that I'm analyzing as part of a web scraping process. I have noticed that the PDF generator appears to be using an ugly hack to generate bolded text by layering multiple copies of the same character on top of one another; I don't know if that might be contributing to the problem.

I've tried both the version in PyPi, and the GitHub version, without success. Suggestions appreciated!

Derek

pdf2txt.py main1.pdf
Traceback (most recent call last):
File "/home/ddohler/Development/pubreg_scrapy/bin/pdf2txt.py", line 105, in <module>
if __name__ == '__main__': sys.exit(main(sys.argv))
File "/home/ddohler/Development/pubreg_scrapy/bin/pdf2txt.py", line 99, in main
caching=caching, check_extractable=True)
File "/home/ddohler/Development/pubreg_scrapy/local/lib/python2.7/site-packages/pdfminer/pdfinterp.py", line 832, in process_pdf
interpreter.process_page(page)
File "/home/ddohler/Development/pubreg_scrapy/local/lib/python2.7/site-packages/pdfminer/pdfinterp.py", line 758, in process_page
self.device.end_page(page)
File "/home/ddohler/Development/pubreg_scrapy/local/lib/python2.7/site-packages/pdfminer/converter.py", line 35, in end_page
self.cur_item.analyze(self.laparams)
File "/home/ddohler/Development/pubreg_scrapy/local/lib/python2.7/site-packages/pdfminer/layout.py", line 635, in analyze
self.groups = self.group_textboxes(laparams, textboxes)
File "/home/ddohler/Development/pubreg_scrapy/local/lib/python2.7/site-packages/pdfminer/layout.py", line 618, in group_textboxes
assert len(plane) == 1

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Attachment (main1.pdf): application/pdf, 32 KiB

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Aaron Joseph | 19 Nov 2012 23:07

How to extract all pdf form fields, field name, field type and coordinates using pdfminer?

So I have tried pdf2text.py a couple of times but I really want to ignore all the non field values and extract these values from a PDF.

form fields
field name
field type
coordinates

If there is any good way to format this in JSON rather than XML, much appreciated.

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mjsirajahmed | 17 Sep 2012 10:20

how to extract the coordinates for an image in PDF?

Can any one tell me how to extract images and the coordinates for images ?

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Marc Stober | 5 Aug 2012 23:32

Re: Page links from TOC (outlines)


Thank you!!! Was looking for a way to get the page numbers from the 
get_outlines method and this worked perfectly.

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Paulo Scardine | 14 Jun 2012 05:29

bug in utils.drange?

I'm trying to mine a document and got a couple AssertionErrors at layout.py:533:

neighbors = line.find_neighbors(plane, laparams.line_margin)

assert line in neighbors, line

Well, the LTTextLineHorizontal is not in neighbors because it is not in the plane._grid, so find_neighbors returns [].

[Dbg]>>> line

<LTTextLineHorizontal 225.900,500.061,359.781,500.734 u'reclamante o importe de R$ 18.750,00 em 09/11/09'>

I've traced it to a call of utils.drange in Plane._getrange at utils.py:230.

In this case, drange(line.y0, line.y1, plane.gridsize) returns xrange(10, 10), which is void, so this line never gets into plane._grid.

# drange

def drange(v0, v1, d):

"""Returns a discrete range."""

assert v0 < v1

return xrange(int(v0)/d, int(v1+d-1)/d)

Should it ever be able to return a value like xrange(10, 10)? I mean, if int(v0)/d == int(v1+d-1)/d should we return xrange(int(v0)/d, int(v0)/d+1) instead? If so, I can provide a patch.

Thanks in advance,

--

Paulo

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sagar priyadarshi | 4 Jan 2012 11:41

Problem in getting xml file while using dumppdf.py

Dear All

I am using pdfminer's dumppdf.py program to extract text from a pdf
using command as:

dumppdf.py -a [pdf file] > [output xml file]

Which works well with all the pdf but suddenly with one pdf , It gave
me below errors:

Traceback (most recent call last):
  File "/usr/local/bin/dumppdf.py", line 226, in <module>
    if __name__ == '__main__': sys.exit(main(sys.argv))
  File "/usr/local/bin/dumppdf.py", line 223, in main
    dumpall=dumpall, codec=codec)
  File "/usr/local/bin/dumppdf.py", line 162, in dumppdf
    doc.set_parser(parser)
  File "/usr/local/lib64/python2.6/site-packages/pdfminer/
pdfparser.py", line 327, in set_parser
    self.info.append(dict_value(trailer['Info']))
  File "/usr/local/lib64/python2.6/site-packages/pdfminer/
pdftypes.py", line 132, in dict_value
    x = resolve1(x)
  File "/usr/local/lib64/python2.6/site-packages/pdfminer/
pdftypes.py", line 60, in resolve1
    x = x.resolve()
  File "/usr/local/lib64/python2.6/site-packages/pdfminer/
pdftypes.py", line 49, in resolve
    return self.doc.getobj(self.objid)
  File "/usr/local/lib64/python2.6/site-packages/pdfminer/
pdfparser.py", line 418, in getobj
    (strmid, index) = xref.get_pos(objid)
  File "/usr/local/lib64/python2.6/site-packages/pdfminer/
pdfparser.py", line 211, in get_pos
    pos = nunpack(ent[self.fl1:self.fl1+self.fl2])
  File "/usr/local/lib64/python2.6/site-packages/pdfminer/utils.py",
line 116, in nunpack
    raise TypeError('invalid length: %d' % l)
TypeError: invalid length: 8

What may be the possible reasons? I am using latest pdfminer build and
python installed is 2.6
PDF is not secured and protected and has similar properties as any
other pdf has.

Waiting for  responses!

Regards
Sagar

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sagar priyadarshi | 12 Nov 2011 11:52

How to find page no using dumppdf.py

Hi All!

My basic purpose is to get the xfdf for any pdf which contains
comments (annotation). I am trying dumppdf.py to use it as:
dumppdf.py -a mypdf.pdf > output.xml

and then parse output.xml to get attributes and values which are
required to form xfdf. I am getting all the attributes in output.xml
except the PAGE NO.

For each comment, there is one object in xml but that object tag does
not contain any information about location of comment (page no in
original pdf file).

Kindly share your ideas. Or is there any other way to get xfdf from
given annotated pdf?

Regards
Sagar

4	February 2013
2	November 2012
1	September 2012
1	August 2012
2	June 2012
1	January 2012
3	December 2011
4	November 2011
4	October 2011
1	September 2011
17	August 2011
6	July 2011
10	June 2011
12	May 2011
3	April 2011
9	March 2011
14	February 2011
11	January 2011
9	December 2010

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