This is still happening with Inkscape 0.48.4 on Ubuntu 14.04.
My case is I'm opening bank statement PDFs in Inkscape. They look fine in Inkscape, but when I save as PDF or print to a PDF file, the images (bank's logo, next page icon, etc.) don't appear and black squares or gradients appear in their place.
The workaround is much as in comments 5 and 6: select an image, ungroup, select again, right click > Release Mask. The image inverts, so Extensions > Raster > Negate. This leaves faint black outlines but at least the images appear in the PDF.
FWIW the originating PDF is generated by Author: TrilliCom LLC, Producer: TRCA2P14 V1.39C (and some poor drone at the bank fiddling around with its logos until the original PDF looked OK).
This is still happening with Inkscape 0.48.4 on Ubuntu 14.04.
My case is I'm opening bank statement PDFs in Inkscape. They look fine in Inkscape, but when I save as PDF or print to a PDF file, the images (bank's logo, next page icon, etc.) don't appear and black squares or gradients appear in their place.
The workaround is much as in comments 5 and 6: select an image, ungroup, select again, right click > Release Mask. The image inverts, so Extensions > Raster > Negate. This leaves faint black outlines but at least the images appear in the PDF.
FWIW the originating PDF is generated by Author: TrilliCom LLC, Producer: TRCA2P14 V1.39C (and some poor drone at the bank fiddling around with its logos until the original PDF looked OK).