diff --git a/samples/attachments/1.pdf b/samples/attachments/1.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..f698ff53d41575b222e6778f87f9e9fd8da4f2b1
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diff --git a/samples/main_documents/1.pdf b/samples/main_documents/1.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..43e0965b55c359fc74cfea18c255d405c115c9f1
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diff --git a/samples/main_documents/2.pdf b/samples/main_documents/2.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..43e3f2adc7ad14ec4f80969ef3e8a3022a05bb5c
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diff --git a/samples/signatures/1.png b/samples/signatures/1.png
new file mode 100644
index 0000000000000000000000000000000000000000..b27079eb067b5425dfd9f5488db56e327af3e5d4
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diff --git a/samples/signatures/2.png b/samples/signatures/2.png
new file mode 100644
index 0000000000000000000000000000000000000000..1beb7361f9bf071ec5cb4b558a1cbea266e475f1
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diff --git a/samples/signatures/3.png b/samples/signatures/3.png
new file mode 100644
index 0000000000000000000000000000000000000000..db03bd26fe3d23dec64b40c105dbfd51920a4da1
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diff --git a/samples/signatures/4.png b/samples/signatures/4.png
new file mode 100644
index 0000000000000000000000000000000000000000..8f5c16df5bc631ecae4bd5ac909ece7692f0de75
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diff --git a/samples/signatures/5.png b/samples/signatures/5.png
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index 0000000000000000000000000000000000000000..c33ecdf4302567b07a2402b543b28911df84f7f8
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diff --git a/samples/signatures/6.png b/samples/signatures/6.png
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index 0000000000000000000000000000000000000000..4c45c8c62553d3d8d9ec229c9c24dce6d3bd4428
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diff --git a/samples/signatures/7.png b/samples/signatures/7.png
new file mode 100644
index 0000000000000000000000000000000000000000..1b81a97c27c8198156f56be9e41cebedc135c2ca
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diff --git a/samples/signatures/8.png b/samples/signatures/8.png
new file mode 100644
index 0000000000000000000000000000000000000000..0bc3c538dace881dac069d1b27b21082dee75969
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diff --git a/samples/signatures/9.png b/samples/signatures/9.png
new file mode 100644
index 0000000000000000000000000000000000000000..ece523db9b0d763d85fd05c4d3f74737a920c059
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diff --git a/samples/test.pdf b/samples/test.pdf
deleted file mode 100644
index 949f19f0e6d36f61678e8744fcfece953efff4fa..0000000000000000000000000000000000000000
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diff --git a/sql/data_fr.sql b/sql/data_fr.sql
index b817b1daf8021a353f324f1f5ba54aa9ed89180c..4acf66de3ee3c29b77c9a2d65e6f28a34f54289c 100755
--- a/sql/data_fr.sql
+++ b/sql/data_fr.sql
@@ -93,3 +93,17 @@ $$;
 
 ALTER SEQUENCE main_documents_id_seq RESTART WITH 501;
 ALTER SEQUENCE attachments_id_seq RESTART WITH 501;
+
+-----
+-- Signatures
+-----
+TRUNCATE TABLE signatures;
+INSERT INTO signatures VALUES (1, 1, 'tests/', '1.png', '8429de8819279f416f1427593798e7b8d22f92ae74b7635d74b450365aee90f7919540109e4b78179c19436dc673b47a7a4f133150c6a19ee5567c3a4b5cdf52');
+INSERT INTO signatures VALUES (2, 1, 'tests/', '2.png', '1add86db218fe4a0eb2385c826cfb7c51163b3a7862803c918ad122b30ea75021598540170f8ea9a97d97e7ce34df17530ec9d239cd7cfdf516e55b75f694364');
+INSERT INTO signatures VALUES (3, 1, 'tests/', '3.png', '01ae8ee839a4e65cdc2c56ca6c3cf419c4c4e3a48656107e3adfacdfb105f407aef2d4f01e159871cac4af2c971f25acbc6909da2c21ccde18e05d15761bd588');
+INSERT INTO signatures VALUES (4, 1, 'tests/', '4.png', '0a17f4f63490851c07c757c22b19846f17b4f36476f30900417ee56261dcfac319a350f33505cf45abd3f51cf0d94fffb0858708696fd616b7dc2f38bb1ef217');
+INSERT INTO signatures VALUES (5, 1, 'tests/', '5.png', '26206efefbe4f3bcf674f72588d88c9f779e6f41945d92f45e3a4267abc69c5500e5769a4dc72a28c6cc508fced24e73131471392a7e22f290f2ce896aee7fce');
+INSERT INTO signatures VALUES (6, 1, 'tests/', '6.png', '05cddd650ce17dcd3e14869f7a6d8dbc3d5a079a66f61bb0cf5532d17c53f1a552d207284072f75eb7ab13466efe9a16b3150115663c4c53d4c19c9566948208');
+INSERT INTO signatures VALUES (7, 1, 'tests/', '7.png', '9b10027df5a5c3730e7e8ae98117e5d597fff2e2777e175a7e8a8653fc8309ee74ab3221782fd2f551adef7ae18224107c5b4df7f0792b846106683bd258d6d6');
+INSERT INTO signatures VALUES (8, 1, 'tests/', '8.png', '63fa29872286baf7ee9a295e6fce6c78e2a176ee5952b374dd5a448dac9cef42e393be7216584b3f3fefcaed8ffe60faa05210d200a6c02f5fe5f01480930db2');
+INSERT INTO signatures VALUES (9, 1, 'tests/', '9.png', '06f847c16e32e4e2b761d30281e009d7621731606526e3b86aa0bd2672dbfa932bd55dbfc116b818c507c55f14d7940b87e1bab78bbbacea78178c330a89a289');