diff --git a/test/pdfs/issue1233.pdf.link b/test/pdfs/issue1233.pdf.link
index 66c9bc7d..3b0c2bb4 100644
--- a/test/pdfs/issue1233.pdf.link
+++ b/test/pdfs/issue1233.pdf.link
@@ -1 +1 @@
-http://princexml.com/samples/math.pdf
+http://web.archive.org/web/20150314135023/http://www.princexml.com/samples/math.pdf
diff --git a/test/pdfs/issue1257.pdf.link b/test/pdfs/issue1257.pdf.link
index 5a8bdd15..9b258c26 100644
--- a/test/pdfs/issue1257.pdf.link
+++ b/test/pdfs/issue1257.pdf.link
@@ -1 +1 @@
-http://hse-econ.fi/tervio/MediocritiesAndSuperstars.pdf
+http://web.archive.org/web/20150426075030/http://hse-econ.fi/tervio/MediocritiesAndSuperstars.pdf
diff --git a/test/pdfs/issue1309.pdf.link b/test/pdfs/issue1309.pdf.link
index 1351d45e..42b8fac9 100644
--- a/test/pdfs/issue1309.pdf.link
+++ b/test/pdfs/issue1309.pdf.link
@@ -1 +1 @@
-http://www.lufthansa.com/mediapool/pdf/31/media_907231.pdf
+http://web.archive.org/web/20121007045900/http://www.lufthansa.com/mediapool/pdf/31/media_907231.pdf
diff --git a/test/pdfs/issue1317.pdf.link b/test/pdfs/issue1317.pdf.link
index 67c4d50e..87ef685d 100644
--- a/test/pdfs/issue1317.pdf.link
+++ b/test/pdfs/issue1317.pdf.link
@@ -1 +1 @@
-http://iliad.fr/presse/2012/CP_080312_Free_mobile.pdf
+http://web.archive.org/web/20150315052542/http://iliad.fr/presse/2012/CP_080312_Free_mobile.pdf
diff --git a/test/pdfs/issue1419.pdf.link b/test/pdfs/issue1419.pdf.link
index 7fe9f28b..fe9c208e 100644
--- a/test/pdfs/issue1419.pdf.link
+++ b/test/pdfs/issue1419.pdf.link
@@ -1 +1 @@
-http://www.meal-a-day.asia/sites/default/files/Meal-a-Day%20Asia-Pacific%20Biennial%20Report%202012%20v1.01.pdf
+http://web.archive.org/web/20160114162318/http://www.meal-a-day.asia/sites/default/files/Meal-a-Day%20Asia-Pacific%20Biennial%20Report%202012%20v1.01.pdf