diff --git a/pdf/2019-Analyzing_Chinas_Blocking_of_Unpublished_Tor_Bridges.pdf b/pdf/2019-Analyzing_Chinas_Blocking_of_Unpublished_Tor_Bridges.pdf
new file mode 100644
index 0000000..8e6f8c1
Binary files /dev/null and b/pdf/2019-Analyzing_Chinas_Blocking_of_Unpublished_Tor_Bridges.pdf differ