Horacio Emilio Pérez Sánchez wrote:
> I have a 60 pages lyx document with a lot of figures (raster colour
> figures in jpg format)
a- the size of the figures changes in the output when I use pdflatex.
And the most strange is that it happens sometimes; if after I render to
"View-->PDF" and I come back to "View-->PDF(pdflatex)" again, sometimes
(not always) the figures have the right size, like in the "View-->PDF"
output.
"View-->PDF" produces at first a Postscript-file and then a PDF. That
means the jpg-images are converted to EPS (for Postscript) and then to
PDF-images. That's the reason for the long rendering time. pdflatex
generate directly a pdf and jpg-images can be included in PDF without
file format conversion. If you first use "View-->PDF", the converted
images are stored in LyX's temp directory and are possibly used when you
use another PDF creation method. So reopen the document and use only
pdflatex - is the result then better?
For more infos about this have a look at section 2.7.2 of the file:
http://wiki.lyx.org/uploads/LyX/LyXDevelDocumentation/UserGuideNV.pdf
(from http://wiki.lyx.org/LyX/DocumentationDevelopment )
b- my files are 16 bit coloured. With "View-->PDF" they appear
correctly, but with "View-->PDF(pdflatex)" colours change strangely, and
it seems there is a loss in the colour depth.
pdflatex don't change/convert jpg-images, so this is strange. You could
try to update your LaTeX-distribution and/or pdflatex if this is possible.
If you have problems with the image quality when they are converted, you
can open the file "convertDefault.sh" in LyX's "scripts" directory and
change the line
convert -depth 8 "$1" "$2" || {
to
convert "$1" "$2" || {
or to
convert -depth 16 "$1" "$2" || {
regards Uwe
