[reportlab-users] How can I edit PDF metadatas

[Dani Reguera]

Thanks a lot Patrick!

I have done with your example and works great!



2009/11/30 Patrick Maupin <pmaupin at gmail.com>


> I've added some new functionality, and an example that is more in line

> with the original request (to alter the title metadata in a

> preexisting PDF).  The required code is basically:

>

> trailer = PdfReader(inpfn)

> trailer.Info.Title = 'My New Title Goes Here'

> writer = PdfWriter()

> writer.trailer = trailer

> writer.write(outfn)

>

> The full example is at:

>

> http://code.google.com/p/pdfrw/source/browse/trunk/examples/alter.py

>

> Regards,

> Pat

>

> On Mon, Nov 30, 2009 at 11:33 AM, Patrick Maupin <pmaupin at gmail.com>

> wrote:

> > I second the thought that pdftk is easy to use (I use it all the

> > time), but if your source files are not encrypted and don't have PDF

> > 1.5 compressed object streams, my new pdfrw library might be easier to

> > use than pypdf.  For example, the way you can add metadata to the PDF

> > trailer dictionary is:

> >

> > writer.trailer.Info = IndirectPdfDict(

> >    Title = 'your title goes here',

> >    Author = 'your name goes here',

> >    Subject = 'what is it all about?',

> >    Creator = 'some script goes here',

> > )

> >

> > I have posted a complete working example:

> >

> > http://code.google.com/p/pdfrw/source/browse/trunk/examples/metadata.py

> >

> > Best regards,

> > Pat

> >

> >

> > On Mon, Nov 30, 2009 at 5:49 AM, Christian Jacobsen

> > <cljacobsen at gmail.com> wrote:

> >> You can also use pypdf. http://pybrary.net/pyPdf/

> >>

> >> This won't let you edit the metadata per se, but will let you read one

> >> or more pdf file(s) and spit them back out, possibly with new

> >> metadata. It is somewhat low level though. I find it useful for

> >> automatically putting PDFs together for various things. I have

> >> included an example below. I often also generate pages with replortlab

> >> (ie separators between the PDFs that I am concatenating) which I

> >> insert into the stream. I use the stringio module to capture the page

> >> from reportlab and then feed it to pypdf's PdfFileReader. I have also

> >> been known to stamp a running page number onto the pages by merging a

> >> reportlab generated page with just a pagenumber with the input page.

> >>

> >> pdftk does all of this of course and is probably easier to use.

> >>

> >>  Christian

> >>

> >>

> >> import pyPdf

> >> from pyPdf import PdfFileWriter, PdfFileReader

> >>

> >> OUTPUT = 'output.pdf'

> >> INPUTS  = ['test1.pdf', 'test2.pdf', 'test3.pdf']

> >>

> >> # There is no interface through pyPDF with which to set this other then

> getting

> >> # your hands dirty like so:

> >> infoDict = output._info.getObject()

> >> infoDict.update({

> >>    NameObject('/Title'): createStringObject(u'title'),

> >>    NameObject('/Author'): createStringObject(u'author'),

> >>    NameObject('/Subject'): createStringObject(u'subject'),

> >>    NameObject('/Creator'): createStringObject(u'a script')

> >>    })

> >>

> >> inputs = [PdfFileReader(i) for i in INPUTS]

> >> for input in inputs:

> >>    for page in range(input.getNumPages()):

> >>        output.addPage(input.getPage(page))

> >>

> >> outputStream = file(OUTPUT, 'wb')

> >> output.write(outputStream)

> >> outputStream.close()

> >>

> >>

> >> 2009/11/26 Andy Robinson <andy at reportlab.com>:

> >>> 2009/11/26 Dani Reguera <drbakhache at gmail.com>:

> >>>> Can I open the file with reportlab and then set its title?

> >>>

> >>> reportlab creates files, but doesn't edit them.

> >>>

> >>> pdftk is writing the final file. I just googled it, and it has options

> >>> to set the metadata on the command line.  See 'update_info' on this

> >>> page...

> >>>    http://www.accesspdf.com/pdftk/

> >>>

> >>> --

> >>> Andy Robinson

> >>> CEO/Chief Architect

> >>> ReportLab Europe Ltd.

> >>> _______________________________________________

> >>> reportlab-users mailing list

> >>> reportlab-users at lists2.reportlab.com

> >>> http://two.pairlist.net/mailman/listinfo/reportlab-users

> >>>

> >> _______________________________________________

> >> reportlab-users mailing list

> >> reportlab-users at lists2.reportlab.com

> >> http://two.pairlist.net/mailman/listinfo/reportlab-users

> >>

> >

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>




-- 

Dani Reguera
dreguera at tagzania.com

Tagzania Services [www.tagzania-services.com]
Azitaingo Industrialdea 3 K
E-20600 Eibar
Tel: (+34) 943 82 17 80
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