diff --git a/doc/sphinx/source/resources/file-format/dxf.rst b/doc/sphinx/source/resources/file-format/dxf.rst
new file mode 100644
index 0000000000000000000000000000000000000000..314b0843818793db40bec15a0fb993c2aad0e6b7
--- /dev/null
+++ b/doc/sphinx/source/resources/file-format/dxf.rst
@@ -0,0 +1,7 @@
+.. include:: /abbreviation.txt
+
+.. _dxf-ressources-page:
+
+=================
+ DXF File Format
+=================
diff --git a/doc/sphinx/source/resources/file-format/index.rst b/doc/sphinx/source/resources/file-format/index.rst
new file mode 100644
index 0000000000000000000000000000000000000000..4c9f1aeaed55b8cfc8da7b85344fb416bf9f837f
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+++ b/doc/sphinx/source/resources/file-format/index.rst
@@ -0,0 +1,18 @@
+.. include:: /abbreviation.txt
+
+.. _file-format-ressources-page:
+
+==============
+ File Formats
+==============
+
+This section contains resource on file format.
+
+Contents:
+
+.. toctree::
+  :maxdepth: 2
+
+  dxf.rst
+  svg.rst
+  valentina.rst
diff --git a/doc/sphinx/source/resources/file-format/svg.rst b/doc/sphinx/source/resources/file-format/svg.rst
new file mode 100644
index 0000000000000000000000000000000000000000..1194c1ffcffe56c49ed6334e06102569dc9b13af
--- /dev/null
+++ b/doc/sphinx/source/resources/file-format/svg.rst
@@ -0,0 +1,90 @@
+.. include:: /abbreviation.txt
+
+.. _svg-ressources-page:
+
+=================
+ SVG File Format
+=================
+
+Reference Documentations
+------------------------
+
+* `Scalable Vector Graphics (SVG) W3C Home Page <https://www.w3.org/Graphics/SVG>`_
+* `An SVG Primer for Today's Browsers W3C Working Draft — September 2010 <https://www.w3.org/Graphics/SVG/IG/resources/svgprimer.html>`_
+* `Scalable Vector Graphics (SVG) 1.1 (Second Edition) W3C Recommendation 16 August 2011 <https://www.w3.org/TR/SVG11/>`_
+* `Mozilla SVG Documentation <https://developer.mozilla.org/en-US/docs/Web/SVG>`_
+
+SVG Coordinate System
+---------------------
+
+SVG uses the screen coordinate system where the X axis points towards the right direction and the Y
+axis points towards the bottom direction, thus the origin is at the upper left-hand corner of the
+drawing frame.
+
+Inkscape Software
+-----------------
+
+Inkscape can save a SVG file in several ways:
+
+* simple: the file will only contains pure SVG
+* Inkscape: the file will contains Inkscape extension
+* optimised: perform some optimisations on the output
+* compressed: file is compressed using the zip algorithm
+
+**Notes on how Inkscape generates SVG**:
+
+* As opposite to the SVG Specification, Inkscape set the origin at the bottom of the document, thus
+
+    :math:`\mathbf{Y}_{\mathrm{Inkscape}} = \mathbf{Page\ Height} - \mathbf{Y}_{\mathrm{SVG}}`
+
+    The transformation is a composition of a Y axis parity and a translation on the Y axis of the page height.
+
+    See also https://bugs.launchpad.net/inkscape/+bug/170049
+
+* It uses a *group* as top layer and a *transform*
+* It uses a mix of absolute and incremental coordinates
+* **It spoils in several ways the object's coordinates**: values are transformed and rounded.
+   Thus **Inkscape should not be be used to make or edit a file which require accurate coordinates.**
+
+Inkscape SVG example
+~~~~~~~~~~~~~~~~~~~~
+
+This example uses a margin of 20 and paint
+
+* an horizontal line of length 100 from the origin (20, 20)
+* a vertical line of length 100 from the origin
+* a 45° line of length 80 from the origin
+* the viewport is (0, 0, 140, 140)
+
+**Note: this extract is incomplete**
+
+.. code-block:: text
+
+    <?xml version="1.0" encoding="UTF-8" standalone="no"?>
+    <svg width="140.00003mm" height="141mm" viewBox="0 0 140.00003 141">
+      <g id="layer1" transform="translate(2.037847e-4,-156)">
+        <path id="path-x"  d="m 19.999999,276.73109 99.999651,0.13765" />
+        <path id="path-y"  d="M 20.145247,277 V 177" />
+        <path id="path-45" d="m 20.084712,276.91488 79.830575,-79.8386" />
+      </g>
+    </svg>
+
+This SVG file must be interpreted as follow
+
+* Draw a line from (20, 276-156) to +(100, 0) (note: l is deduced from m),
+
+    which gives (20, 120) to (120, 120),
+
+    and in Inkscape coordinates (20, 20) to (120, 20) since 140 - 120 = 20
+
+* Draw a line from (20, 276-156) to (20, 176-156),
+
+    which gives (20, 120) to (20, 20),
+
+    and in Inkscape coordinates (20, 20) to (20, 120)
+
+* Draw a line from (20, 276-156) to +(80, -80),
+
+    which gives (20, 120) to (100, 40),
+
+  and in Inkscape coordinates (20, 20) to (100, 100)
diff --git a/doc/sphinx/source/resources/file-format/valentina.rst b/doc/sphinx/source/resources/file-format/valentina.rst
new file mode 100644
index 0000000000000000000000000000000000000000..b437fd5920448f5ff0157c1142228fd5bb8b710f
--- /dev/null
+++ b/doc/sphinx/source/resources/file-format/valentina.rst
@@ -0,0 +1,7 @@
+.. include:: /abbreviation.txt
+
+.. _valentina-file-format-ressources-page:
+
+=======================
+ Valentina File Format
+=======================
diff --git a/doc/sphinx/source/resources/index.rst b/doc/sphinx/source/resources/index.rst
index b097907e72b45b95fd6b3a9686a5e56a24c9cf6b..c3e6530ff4cc6e802f3d66e39b6c2a229dd56541 100644
--- a/doc/sphinx/source/resources/index.rst
+++ b/doc/sphinx/source/resources/index.rst
@@ -13,4 +13,5 @@ Contents:
 .. toctree::
   :maxdepth: 2
 
+  file-format/index.rst
   geometry/index.rst