Merging PDF files
I do love Inkscape program. However, there is one thing it is still missing (it's not the program's fault though), the ability to handle more than one page documents. I recently was producing some drawings at work and I wanted to make a single document package with all the drawings to be emailed to my colleagues.
As I can produce PDF output from Inkscape, I searched for easy ways to merge several PDF files. I do know Adobe's Acrobat can do that, but I was looking for a cheaper alternative. I learned that you can use command-line ghostscript to get this done (provided you have it installed) easily.
gs -sPAPERSIZE=a4 -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -sOutputFile=outfile.pdf inputfile1.pdf ... inputfileN.pdf
I learned too that it can be done online, in fact there are several sites (mergepdf, joinpdf) you can use.
Though there are certain limitations (encrypted PDF files are a no go), it seems I no longer have to worry about creating multipage PDF easily (of course it will be even easier when Inkscape includes multi-page support).