diff --git a/report/Makefile b/report/Makefile
index 3f37dcc..5ea438e 100644
--- a/report/Makefile
+++ b/report/Makefile
@@ -5,11 +5,13 @@ SRC = $(TEX)
 PDF = $(TEX:.tex=.pdf)
 
 TEXMK = latexmk -shell-escape -lualatex -interaction=nonstopmode
+QPDF  = qpdf --linearize --replace-input
 
 all: $(PDF)
 
 $(PDF): %.pdf: %.tex
 	$(TEXMK) $<
+	@$(QPDF) $@ 2>/dev/null |:
 
 EXTS = aux fdb_latexmk fls log nav out snm synctex.gz toc
 clean: