[reportlab-users] Generate a Jpeg image from a PDF File done by reportlab
carl at personnelware.com
Wed Dec 2 11:31:17 EST 2009
On Wed, Dec 2, 2009 at 10:07 AM, Dani Reguera <drbakhache at gmail.com> wrote:
> Hi everybody,
> I have a problem with a pdf file generated with reportlab, maybe anyone
> could help me. I have generated a file in reportlab, and now I want to make
> a thumbnail image, the format doesn't matter (png or jpeg) and I'm trying
> with ghostscript (GS) and ImageMagick, but the problem is that GS tells me
> that it's and error. Seems that the pdf generated by reportlab is
> corrupted... could be that the pdf format is PDF-1.3?
> Is in reportlab a way to generate a jpg image or export apdf file to a jpg
> Any suggestion or help will be appreciated.
it is easier if you create files, but here is how I do it all in memory:
# get pdf
pdf = mkpdf(ds,sample=True)
# render pdf onto pixbuf
pixbuf = Pixbuf(COLORSPACE_RGB,False,8,286,225)
doc = poppler.document_new_from_data(pdf,len(pdf),password='')
# save pixbuf as png
# There has to be a better way to get the image?
pixbuf.save_to_callback(lambda b,l: l.append(b), 'png', user_data=lst)
Works, but that .join() bothers me. I think it is because I feel like
I am using string/char functions on bytes. which are the same thing,
mostly.. but... I have issues.
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