[reportlab-users] How can I edit PDF metadatas

[Patrick Maupin]

Glad to hear it!  It's fairly new software, so the more users, the
quicker they will help me find all the bugs :-)

Best regards,
Pat

On Tue, Dec 1, 2009 at 8:06 AM, Dani Reguera <dreguera at tagzania.com> wrote:

> 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

>> >>>

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>> >>

>> >

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>

>

> --

>

> Dani Reguera

> dreguera at tagzania.com

>

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