append to PDF file

Hi

is there a way to append a plot as PDF to an existing PDF file?
savePlot seems not to have this possibility.

Christof

PDF files contain information at the end of them and so you cannot append without altering the file (universally true for PDF). Perhaps pdf() your plots and use external tools to convert the PDFs to .ps then re-merge. Might not be the best way, but an effective one.
? ? Ken Hutchison


On Nov 26, 2554 BE, at 5:38 PM, Christof Klu? <ckluss at email.uni-kiel.de> wrote:

Hi

is there a way to append a plot as PDF to an existing PDF file?
savePlot seems not to have this possibility.

Christof

There is the 'pdftk' (PDF tool kit) that you will find on the web that
will do the job.  I have used it to both combine and split out the
pages in the PDF file.

Hi Jim, Hi Ken

Am 27-11-2011 00:00, schrieb jim holtman:

There is the 'pdftk' (PDF tool kit) that you will find on the web that
will do the job. ?I have used it to both combine and split out the
pages in the PDF file.

yes, thx. GUI tools like www.pdfsam.org do the job too. But is there a
possibility to append files directly in R. That is to invoke "pdftk" inside
R with a "shellandwait"?

perhaps something like

for (i in ...) {
?...
?savePlot(filename="temp.pdf", type="pdf")
?exec pdftk temp.pdf final.pdf cat output final.pdf
}

greetings
Christof

I think you are looking for the system() command.

Michael

On Tue, Nov 29, 2011 at 7:11 AM, Christof Klu?<ckluss at email.uni-kiel.de>  wrote:

Hi Jim, Hi Ken

Am 27-11-2011 00:00, schrieb jim holtman:

There is the 'pdftk' (PDF tool kit) that you will find on the web that
will do the job.  I have used it to both combine and split out the
pages in the PDF file.

yes, thx. GUI tools like www.pdfsam.org do the job too. But is there a
possibility to append files directly in R. That is to invoke "pdftk" inside
R with a "shellandwait"?

perhaps something like

for (i in ...) {
  ...
  savePlot(filename="temp.pdf", type="pdf")
  exec pdftk temp.pdf final.pdf cat output final.pdf
}

greetings
Christof