No more insight, sorry, other than suggesting you to convert to pdf locally in your computer, unless you can code yourself what you see missing, or invest a significant amount of money to get some developer/s fix this properly (some of us couldn't, it seems, in many many months of time/energy and money invested).
Good luck
Xavi

P.S: When I want a reliable way to make a pdf out of content in Tiki sites, I print to pdf locally in my computer. (after investing some money last year into attempting to get some decent solution server-side from within tiki, but I failed).

On 15/11/12 15:25, Marc Laporte wrote:

doc.tiki.org is set up with wkhtmltopdf and thus a good place to test.

For wiki pages via wkhtmltopdf: images work

The PDF export for the slideshow is experimental and using dompdf (which is in PHP and thus embeddable in Tiki, not like wkhtmltopdf which needs to be installed and mostly not available on shared hosting). Last time I tried, the images didn't work.

The initial choice for a PHP lib for shared hosting was TCPDF, but there was a licensing issue, so domPDF was picked. Now, the licensing issue is all cleared up so we have a choice of TCPDF, domPDF, and others:
http://dev.tiki.org/Online+Publishing+House+-+Output+formats

CC the devlist as Xavi and Robert worked on this and will have more insight.

Thanks!

M :-)

On Nov 15, 2012 4:51 AM, "mekko" <mekko@arcor.de> wrote:
Hi everyone,

I am wondering what I may be doing wrong that images in my wiki pages and
slideshows are not included when exporting to PDF. I am using wkhtmltopdf in
my Tiki installation. Images appear to be simply ignored and are just
replaced with a blank line. I am hoping to only have made some permission
settings mistakes. Any hint is greatly appreciated.

Many thanks in advance.

Cheers
mema