diff --git a/third_party/agg23/README.pdfium b/third_party/agg23/README.pdfium
index b8286cf..eaf4610 100644
--- a/third_party/agg23/README.pdfium
+++ b/third_party/agg23/README.pdfium
@@ -3,6 +3,7 @@
 Version: 2.3
 Security Critical: yes
 License: MIT
+License File: copying
 Shipped: yes
 
 Description:
@@ -33,4 +34,4 @@
 0013-cxx20.patch: C++20 support.
 0014-ubsan-render-line.patch: Fix some integer overflows in
 outline_aa::render_line().
-0015-include-string-h.patch: IWYU for <string.h>
\ No newline at end of file
+0015-include-string-h.patch: IWYU for <string.h>
diff --git a/third_party/agg23/copying b/third_party/agg23/copying
new file mode 100644
index 0000000..523a4f6
--- /dev/null
+++ b/third_party/agg23/copying
@@ -0,0 +1,11 @@
+The Anti-Grain Geometry Project
+A high quality rendering engine for C++
+http://antigrain.com
+
+Anti-Grain Geometry - Version 2.3 
+Copyright (C) 2002-2005 Maxim Shemanarev (McSeem) 
+
+Permission to copy, use, modify, sell and distribute this software 
+is granted provided this copyright notice appears in all copies. 
+This software is provided "as is" without express or implied
+warranty, and with no claim as to its suitability for any purpose.
diff --git a/third_party/libopenjpeg/LICENSE b/third_party/libopenjpeg/LICENSE
new file mode 100644
index 0000000..e8fa410
--- /dev/null
+++ b/third_party/libopenjpeg/LICENSE
@@ -0,0 +1,39 @@
+/*
+ * The copyright in this software is being made available under the 2-clauses 
+ * BSD License, included below. This software may be subject to other third 
+ * party and contributor rights, including patent rights, and no such rights
+ * are granted under this license.
+ *
+ * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2014, Professor Benoit Macq
+ * Copyright (c) 2003-2014, Antonin Descampe
+ * Copyright (c) 2003-2009, Francois-Olivier Devaux
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2011-2012, Centre National d'Etudes Spatiales (CNES), France 
+ * Copyright (c) 2012, CS Systemes d'Information, France
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
diff --git a/third_party/libopenjpeg/README.pdfium b/third_party/libopenjpeg/README.pdfium
index fbbba19..726574e 100644
--- a/third_party/libopenjpeg/README.pdfium
+++ b/third_party/libopenjpeg/README.pdfium
@@ -5,6 +5,7 @@
 Security Critical: yes
 Shipped: yes
 License: 2-clause BSD
+License File: LICENSE
 CPEPrefix: cpe:/a:uclouvain:openjpeg:2.5.2
 
 Description:
diff --git a/third_party/libtiff/LICENSE.md b/third_party/libtiff/LICENSE.md
new file mode 100644
index 0000000..55b6567
--- /dev/null
+++ b/third_party/libtiff/LICENSE.md
@@ -0,0 +1,23 @@
+# LibTIFF license
+
+Copyright © 1988-1997 Sam Leffler\
+Copyright © 1991-1997 Silicon Graphics, Inc.
+
+Permission to use, copy, modify, distribute, and sell this software and 
+its documentation for any purpose is hereby granted without fee, provided
+that (i) the above copyright notices and this permission notice appear in
+all copies of the software and related documentation, and (ii) the names of
+Sam Leffler and Silicon Graphics may not be used in any advertising or
+publicity relating to the software without the specific, prior written
+permission of Sam Leffler and Silicon Graphics.
+
+THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
+WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
+
+IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
+ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
+LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
+OF THIS SOFTWARE.
diff --git a/third_party/libtiff/README.pdfium b/third_party/libtiff/README.pdfium
index 9f3319d..fc60596 100644
--- a/third_party/libtiff/README.pdfium
+++ b/third_party/libtiff/README.pdfium
@@ -5,6 +5,7 @@
 Security Critical: yes
 Shipped: yes
 License: BSD
+License File: LICENSE.md
 
 Description:
 TIFF library.