Hi!
When I insert any graphical PDF files in the document, LyX preview (the
program's editing window) shows them rasterized and in an extremely bad
resolution. In the 'pdflatex' PDF output everything is ok, the quality
is as in the original images.
I discovered that when I insert PDFs LyX converts them to .eps with
'pdftops'. I checked outside LyX and it works without any problems or
decrease in quality. When I insert those independently converted .eps
files (good-quality ones) into a LyX document I get the same results as
with original PDFs - rasterized and bad resolution.
I found some advice to set up EPS->PNG conversion with 'convert' utility
from ImageMagick because presumably LyX uses it to preview EPS images.
After I solved 'convert-im6.q16: not authorized' problem (which somehow
didn't affect LyX, only the command line) I indeed found out that the
default conversion line convert in.pdf out.png gives a very low
resolution PNG file. So I tried convert -density 300 in.pdf out.png fron
the command line and it produces good quality images. Then I inserted
convert -density 300 $$i $$o into the LyX EPS->PNG conversion line. And
that changed absolutely nothing in the LyX preview output, same low
quality. Now I don't know what to do. It seems this converter doesn't
actually work in the program's window.
Could somebody help?
LyX 2.3.2, Ubuntu 18.04.2, XFCE 4.12
Andrey.
