problems with PDFs and images: a bug?

[Helge Blischke]

stefano wrote:
> Hi,
> is there anyone that could try to reproduce this bug.
> I've not opened a bug because i'm not sure these things affecting newer versions of pdftops, and I'm not even sure this is the right package in which the bug should be reported.
> 
> I use pdftops 3.02 shipped with the cups package of Ubuntu 8.10 (intrepid).
> with some pdf files, e.g. [1] and [2], I obtain very low quality ps files in some pages, i think those pages where there are some kind of images (but this is not true with all type of images: only with some kind of images).
> If I try to print these pdfs directly from evince, i obtain nothing where there should be some of these kind of images, for example on page 35 of [1] the image in the top of the page is not printed, and on page 36 the two images in the middle of the page are not printed, while some images are printed correctly (for example on page 14.
> 
> [1] http://algoritmica.org/piluc/tau/pmwiki.php?n=Teaching.Dispense?action=downloadman&upname=ITLCC.pdf - take a look for example to page 35, 36, 37.
> [2] http://www.symfony-project.org/book/1_1/01-Introducing-Symfony
> open this with firefox, file->print in the "general" panel select "print to file" (this is the default, i've not installed any pdf virtual printer) and choose PDF as output format. myfile.pdf will be created. use this to execute pdftops and take a look to pages from 3 to 6 and 8 to 10.
> 
> I also opened this but I did not receive any answere, maybe it was not the right place.. http://bugzilla.gnome.org/show_bug.cgi?id=560620
> 
> 
> I would like also to open a new bug regarding maybe the driver of my Canon Pixma IP3000 printer... but i'm not sure :)
> With few words: when I print a PDF file with blank pages inside (e.g. [1]), these blank pages are skipped, these are not printed, and this is a Bad Thing when I use the Front&Rear option, because if the white page is skipped, i get a paper printed with the wrong orientation on the rear side..
> 
> anyone could suggest me where I should open this bug?
> 
> many thanks :)

I looked into one of your PDFs ([1]) and found nothing weird in it,
except that the image on page 35 of this PDF is quite large (more
than 1 MB uncompressed).

Maybe it is too large for your printer.

The PDF printed ok at our site.

Helge


-- 
Helge Blischke
Softwareentwicklung

H.Blischke at acm.org