diff --git a/tikz/OFB-Mode-Decryption/Makefile b/tikz/OFB-Mode-Decryption/Makefile
index aacc707..ea780c9 100644
--- a/tikz/OFB-Mode-Decryption/Makefile
+++ b/tikz/OFB-Mode-Decryption/Makefile
@@ -25,11 +25,9 @@ transparentGif:
 	make clean
 
 svg:
-	make
 	#inkscape $(SOURCE).pdf --export-plain-svg=$(SOURCE).svg
 	pdf2svg $(SOURCE).pdf $(SOURCE).svg
 	# Necessary, as pdf2svg does not always create valid svgs:
-	inkscape $(SOURCE).svg --export-plain-svg=$(SOURCE).svg
-	rsvg-convert -a -w $(WIDTH) -f svg $(SOURCE).svg -o $(SOURCE)2.svg
-	inkscape $(SOURCE)2.svg --export-plain-svg=$(SOURCE).svg
-	rm $(SOURCE)2.svg
+	inkscape $(SOURCE).svg --export-width=$(WIDTH) --export-plain-svg=$(SOURCE)1.svg
+	rsvg-convert -a -w 720 -f svg $(SOURCE)1.svg -o $(SOURCE).svg
+	rm $(SOURCE)1.svg
diff --git a/tikz/OFB-Mode-Decryption/OFB-Mode-Decryption.png b/tikz/OFB-Mode-Decryption/OFB-Mode-Decryption.png
index 8011235..07591cd 100644
Binary files a/tikz/OFB-Mode-Decryption/OFB-Mode-Decryption.png and b/tikz/OFB-Mode-Decryption/OFB-Mode-Decryption.png differ
diff --git a/tikz/OFB-Mode-Encryption/Makefile b/tikz/OFB-Mode-Encryption/Makefile
index 376050b..7f4b2d5 100644
--- a/tikz/OFB-Mode-Encryption/Makefile
+++ b/tikz/OFB-Mode-Encryption/Makefile
@@ -25,11 +25,9 @@ transparentGif:
 	make clean
 
 svg:
-	make
 	#inkscape $(SOURCE).pdf --export-plain-svg=$(SOURCE).svg
 	pdf2svg $(SOURCE).pdf $(SOURCE).svg
 	# Necessary, as pdf2svg does not always create valid svgs:
-	inkscape $(SOURCE).svg --export-plain-svg=$(SOURCE).svg
-	rsvg-convert -a -w $(WIDTH) -f svg $(SOURCE).svg -o $(SOURCE)2.svg
-	inkscape $(SOURCE)2.svg --export-plain-svg=$(SOURCE).svg
-	rm $(SOURCE)2.svg
+	inkscape $(SOURCE).svg --export-width=$(WIDTH) --export-plain-svg=$(SOURCE)1.svg
+	rsvg-convert -a -w 720 -f svg $(SOURCE)1.svg -o $(SOURCE).svg
+	rm $(SOURCE)1.svg
diff --git a/tikz/OFB-Mode-Encryption/OFB-Mode-Encryption.png b/tikz/OFB-Mode-Encryption/OFB-Mode-Encryption.png
index 375c02c..46c90c3 100644
Binary files a/tikz/OFB-Mode-Encryption/OFB-Mode-Encryption.png and b/tikz/OFB-Mode-Encryption/OFB-Mode-Encryption.png differ