Merge svg files into PDF I have a directory of about 1000 svg files in svgz extension, which resembles a textbook. An example of the svg files can be found here.How would I merge the files into a PDF while preserving as much quality as possible?

As you can see in this image, the PDF rendering of the svg is incomplete, but a quicklook view or opening it in chrome renders it completely. Google Drive preview also does not render it completely.
Based on nohillside's answer and Matthieu Riegler's answer, this is my solution:

cd /
for i in /path/to/folder/*.svgz
    /Applications/Inkscape.app/Contents/Resources/bin/inkscape $i --export-pdf $i.pdf
end
cd /path/to/folder
launchctl limit maxfiles 10240 10240
ulimit -n 10240
pdfunite *.pdf book.pdf