diff -Nru sctk-2.4.10-20151007-1312Z+dfsg2/debian/changelog sctk-2.4.10-20151007-1312Z+dfsg2/debian/changelog
--- sctk-2.4.10-20151007-1312Z+dfsg2/debian/changelog	2016-04-27 16:42:33.000000000 +0000
+++ sctk-2.4.10-20151007-1312Z+dfsg2/debian/changelog	2020-06-08 03:03:11.000000000 +0000
@@ -1,3 +1,16 @@
+sctk (2.4.10-20151007-1312Z+dfsg2-3ubuntu1) groovy; urgency=medium
+
+  * Use pdftoppm instead of convert to convert pdf to jpg as the latter fails
+    with the default security policy on Ubuntu.
+
+ -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Mon, 08 Jun 2020 15:03:11 +1200
+
+sctk (2.4.10-20151007-1312Z+dfsg2-3build1) focal; urgency=medium
+
+  * No-change rebuild for libgcc-s1 package name change.
+
+ -- Matthias Klose <doko@ubuntu.com>  Sun, 22 Mar 2020 16:57:23 +0100
+
 sctk (2.4.10-20151007-1312Z+dfsg2-3) unstable; urgency=medium
 
   * Fix an error in replacement files Makefile.
diff -Nru sctk-2.4.10-20151007-1312Z+dfsg2/debian/control sctk-2.4.10-20151007-1312Z+dfsg2/debian/control
--- sctk-2.4.10-20151007-1312Z+dfsg2/debian/control	2016-04-27 16:42:33.000000000 +0000
+++ sctk-2.4.10-20151007-1312Z+dfsg2/debian/control	2020-06-08 03:03:11.000000000 +0000
@@ -1,13 +1,15 @@
 Source: sctk
 Section: science
 Priority: optional
-Maintainer: Giulio Paci <giuliopaci@gmail.com>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Giulio Paci <giuliopaci@gmail.com>
 Build-Depends: cdbs,
  devscripts,
  debhelper (>= 9~),
  dh-buildinfo,
  dpkg-dev (>= 1.16.1~),
  librsvg2-bin,
+ poppler-utils,
  texlive-latex-base,
  texlive-latex-extra,
  imagemagick,
diff -Nru sctk-2.4.10-20151007-1312Z+dfsg2/debian/control.in sctk-2.4.10-20151007-1312Z+dfsg2/debian/control.in
--- sctk-2.4.10-20151007-1312Z+dfsg2/debian/control.in	2016-04-27 16:42:33.000000000 +0000
+++ sctk-2.4.10-20151007-1312Z+dfsg2/debian/control.in	2020-06-08 03:03:11.000000000 +0000
@@ -1,7 +1,8 @@
 Source: sctk
 Section: science
 Priority: optional
-Maintainer: Giulio Paci <giuliopaci@gmail.com>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Giulio Paci <giuliopaci@gmail.com>
 Build-Depends: @cdbs@
 Standards-Version: 3.9.8
 Homepage: http://www.nist.gov/itl/iad/mig/tools.cfm
diff -Nru sctk-2.4.10-20151007-1312Z+dfsg2/debian/replacement_files/Makefile sctk-2.4.10-20151007-1312Z+dfsg2/debian/replacement_files/Makefile
--- sctk-2.4.10-20151007-1312Z+dfsg2/debian/replacement_files/Makefile	2016-04-27 16:42:33.000000000 +0000
+++ sctk-2.4.10-20151007-1312Z+dfsg2/debian/replacement_files/Makefile	2020-06-08 03:03:11.000000000 +0000
@@ -34,7 +34,7 @@
 all: $(OUTPUT)
 
 %.jpg: %.pdf
-	convert -density 300 $< $@
+	pdftoppm -jpeg -singlefile -r 300 $< > $@
 
 %.png: %.svg
 	convert "$<" "$@"