Comments on: Python PDF Split/Merge Library

By: Ric

Ric — Wed, 18 Apr 2007 22:15:44 +0000

I just got it patched myself. The problem was the absence of an “/ID” mark on the pdf.

I patched your pdf.py this way:

Changed
id_entry = self.safeGetObject(self.trailer['/ID'])
id1_entry = self.safeGetObject(id_entry[0])

for:
if self.trailer.has_key(‘/ID’):
id_entry = self.safeGetObject(self.trailer['/ID'])
id1_entry = self.safeGetObject(id_entry[0])
else:
id1_entry = ”

And now it works perfectly.

By: Ric

Ric — Wed, 18 Apr 2007 21:36:00 +0000

Hi!

I’ve been looking for a lib to handle PDFs in python, and yours looked awesome… until I tried to handle PDFs from gb.espacenet.com (a patent search site).

I was trying to build a tool to merge the separate PDF pages into full PDF files (you will know what I mean if you download a PDF from the site and have a look at it), but pypdf keeps complaining about the PDF it is handling is not decrypted, but I never needed a password to open any of these PDFs in any reader.

I would greatl appreciate if you could have a look at it.

By: Send Flowers

Send Flowers — Wed, 28 Feb 2007 09:33:36 +0000

Send Flowers…

useful blogs…

By: bob

bob — Fri, 29 Dec 2006 19:04:41 +0000

Just came across this – great effort and excellent library.

By: Vasudev Ram

Vasudev Ram — Sun, 24 Dec 2006 15:09:55 +0000

Interesting. Saw this – pyPDF – today. Nice to see another Python/PDF library. I’ll download and check it out. I came across pyPDF via http://del.icio.us/ixx/pdf (which also had a link to an article of mine about my xtopdf PDF creation/conversion toolkit, also written in Python (and uses ReportLab). xtopdf is here:

http://www.dancingbison.com/products.html

Vasudev Ram
Dancing Bison Enterprises
http://www.dancingbison.com

By: Steven Lee

Steven Lee — Tue, 08 Aug 2006 08:33:01 +0000

When I tried the document ,FreeImage390.pdf (download from http://switch.dl.sourceforge.net/sourceforge/freeimage/FreeImage390.pdf)
I get a error as follow:

title = FreeImage 3.9.0 documentation
document1.pdf has 101 pages.
Traceback (most recent call last):
File “F:\pdf\python\pyPdf- 1.6\ex1.py”, line 38, in ? output.write(outputStream)
File “D:\Python24\Lib\site-packages\pyPdf\pdf.py”, line 121, in write obj.writeToStream(stream)
File “D:\Python24\Lib\site-packages\pyPdf\generic.py”, line 326, in writeToStream value.writeToStream (stream)
File “D:\Python24\Lib\site-packages\pyPdf\generic.py”, line 128, in writeToStr eam data.writeToStream(stream)
AttributeError: type object ‘NullObject’ has no attribute ‘writeToStream’

By: Fabrizio

Fabrizio — Fri, 26 May 2006 20:32:21 +0000

Good job, thanks!
One of the best solutions to generate PDF files in python is the one of reportlab, i guess, but the merge functionality is missing in that lib. ( well, missing in the OpenSource chapter ).

By: Florian

Florian — Thu, 01 Jan 1970 00:00:00 +0000

I’ve the same errors as Shailesh when using pyPdf and the only solution that I found is to uncompress the pdf files with :
pdftk doc.pdf output doc2.pdf uncompress
before using it… which is definitely not a good solution

Any idea ? maybe I missed something !

Good job however ! It’s a really useful tool !

By: Shailesh

Shailesh — Thu, 01 Jan 1970 00:00:00 +0000

I am getting errors when I try to run the example script. Any ideas?

Traceback (most recent call last):
File “splmrg.py”, line 7, in ?
output.addPage(input1.getPage(0))
File “E:\Python23\Lib\site-packages\pyPdf\pdf.py”, line 232, in getPage
self._flatten()
File “E:\Python23\Lib\site-packages\pyPdf\pdf.py”, line 244, in _flatten
catalog = self.getObject(self.trailer["/Root"])
File “E:\Python23\Lib\site-packages\pyPdf\pdf.py”, line 296, in getObject
retval = readObject(self.stream, self)
File “E:\Python23\Lib\site-packages\pyPdf\generic.py”, line 63, in readObject
return DictionaryObject.readFromStream(stream, pdf)
File “E:\Python23\Lib\site-packages\pyPdf\generic.py”, line 329, in readFromStream
value = readObject(stream, pdf)
File “E:\Python23\Lib\site-packages\pyPdf\generic.py”, line 54, in readObject
return ArrayObject.readFromStream(stream, pdf)
File “E:\Python23\Lib\site-packages\pyPdf\generic.py”, line 128, in readFromStream
arr.append(readObject(stream, pdf))
File “E:\Python23\Lib\site-packages\pyPdf\generic.py”, line 57, in readObject
return NullObject.readFromStream(stream)
NameError: global name ‘NullObject’ is not defined

By: David Boddie

David Boddie — Thu, 01 Jan 1970 00:00:00 +0000

It’s good to see another PDF library for Python. I wrote one aimed at reading PDF files and extracting information from them:

http://www.boddie.org.uk/david/Projects/Python/pdftools/

It’s licensed under the LGPL.

At this point I usually tentatively put forward the idea of collaborating on a general purpose PDF library for Python, but I’ve got a lot of other ongoing projects to contend with.

Still, let me know if you want to cooperate or discuss ideas.