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How do I concatenate two PDF reports? [Closed]

AJ Schrafel Paper Corp
on 5/7/13, 3:05 AM 2,073 views

The Question has been closed

AJ Schrafel Paper Corp
on 06/27/2013 17:57:52

I have 2 pdfs stored as strings. I want to store them as a temporary file on the server. My problem is the PDF is not properly being stored. Whatever file is written second over writes the file that is written first. Seperately, the 2 files can be stored like this and if you reverse the order of the files the second file always over writes the first.

        fd, file_name = mkstemp()
        temp = result
        temp2 = base64.decodestring(record.attachment_id.datas)

        output = ''.join([temp,"\f",temp2])
        os.write(fd, output)

I want to insert a new page character or something to prevent the second file from over writing the second file in the PDF. What can I do to concatenate 2 PDFs in openerp?


AJ Schrafel Paper Corp

--AJ Schrafel Paper Corp--
| 4 5 8
Bronx, United States
--AJ Schrafel Paper Corp--

Exploring OpenERP for business

AJ Schrafel Paper Corp
On 5/7/13, 5:58 PM

This is the way i finally got it to work, but this seems overly complicated. There has to be a way to concatenate the PDFs without storing them as temporary files first.

fd, file_name = mkstemp()
fd2, file_name2 = mkstemp()
fd3, file_name3 = mkstemp()
os.write(fd, result)
os.write(fd2, base64.decodestring(record.attachment_id.datas))

output = PdfFileWriter()
pdfOne = PdfFileReader(file(file_name, "rb"))
pdfTwo = PdfFileReader(file(file_name2, "rb"))

for i in range(0,pgcnt):
for i in range(0,pgcnt):

outputStream = file(file_name3, "wb")


| 2 1 4
Buenos Aires, Argentina

Python developer, big fan of sailing

On 5/7/13, 12:03 PM

this post on how to merge two pdf files will help you:


no that doesn't help, that is for merging PDFs that are files, I am trying to merge PDFs that are stored in the openERP database. When I put the name of the variable storing the PDF into PdfFileReader, I get an error that the input is a string.

AJ Schrafel Paper Corp
on 5/7/13, 12:09 PM

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Asked: 5/7/13, 3:05 AM
Seen: 2073 times
Last updated: 3/16/15, 8:10 AM