diff --git a/Yavsc/Helpers/TeXHelpers.cs b/Yavsc/Helpers/TeXHelpers.cs
index 0c1d82e9..3f5860f9 100644
--- a/Yavsc/Helpers/TeXHelpers.cs
+++ b/Yavsc/Helpers/TeXHelpers.cs
@@ -10,6 +10,59 @@ using Microsoft.AspNet.Mvc.ViewFeatures;
 
 namespace Yavsc.Helpers
 {
+    public class TeXString  {
+
+        public class Replacement {
+            string target;
+            string replacement;
+            public Replacement(string target, string replacement){
+                this.target=target;
+                this.replacement=replacement;
+            }
+            public string Execute(string source)
+            {
+                return source.Replace(target,replacement);
+            }
+        }
+
+        public readonly static Replacement[] SpecialCharsToCommands = 
+        {
+            new Replacement("<","\\textless"),
+            new Replacement(">","\\textgreater"),
+            new Replacement("©","\\copyright"),
+            new Replacement("®","\\textregistered"),
+            new Replacement("\\","\\textbackslash"),
+            new Replacement("™","\\texttrademark"),
+            new Replacement("¶","\\P"),
+            new Replacement("|","\\textbar"),
+            new Replacement("%","\\%"),
+            new Replacement("{","\\{"),
+            new Replacement("}","\\}"),
+            new Replacement("_","\\_"),
+            new Replacement("#","\\#"),
+            new Replacement("$","\\$"),
+            new Replacement("_","\\_"),
+            new Replacement("¿","\\textquestiondown"),
+            new Replacement("§","\\S"),
+            new Replacement("£","\\pounds"),
+            new Replacement("&","\\&"),
+            new Replacement("¡","\\textexclamdown"),
+            new Replacement("†","\\dag"),
+            new Replacement("–","\\textendash")
+        };
+        string data;
+        public TeXString(string str) {
+            data = str;
+            foreach (var r in SpecialCharsToCommands) {
+                data = r.Execute(data);
+            }
+        }
+        
+        override public string ToString()
+        {
+            return data;
+        }
+    }
     public static class TeXHelpers
     {
         public static string NewLinesWith(this string target, string separator)
@@ -19,6 +72,13 @@ namespace Yavsc.Helpers
 
             return string.Join(separator, items);
         }
+
+        public static TeXString ToTeX(string target, string lineSeparator="\n\\\\")
+        {
+            if (target==null) return null;
+            return new TeXString(target.NewLinesWith(lineSeparator));
+        }
+
         public static string RenderViewToString(
             this Controller controller, IViewEngine engine,
             IHttpContextAccessor httpContextAccessor, 
diff --git a/Yavsc/Views/Shared/Components/Estimate/Estimate_tex.cshtml b/Yavsc/Views/Shared/Components/Estimate/Estimate_tex.cshtml
index 142f19cf..5f8c9d89 100644
--- a/Yavsc/Views/Shared/Components/Estimate/Estimate_tex.cshtml
+++ b/Yavsc/Views/Shared/Components/Estimate/Estimate_tex.cshtml
@@ -69,28 +69,28 @@
 \def\FactureNum            {@Model.Id.ToString()}    % Numéro de facture
 \def\FactureAcquittee    {non}        % Facture acquittée : oui/non
 \def\FactureLieu    {@proaddrn}    % Lieu de l'édition de la facture
-\def\FactureObjet    {Facture : @Model.Title}    % Objet du document
+\def\FactureObjet    {Facture : @TeXHelpers.ToTeX(Model.Title)}    % Objet du document
 % Description de la facture
 \def\FactureDescr    {
-   @Model.Description 
+   @TeXHelpers.ToTeX(Model.Description)
 }
 
 % Infos Client
-\def\ClientNom{@to.UserName}    % Nom du client
+\def\ClientNom{@TeXHelpers.ToTeX(to.UserName)}    % Nom du client
 
 \def\ClientAdresse{                    
 % Adresse du client
 @if (!string.IsNullOrWhiteSpace(PostalAddress)) {
- <text>   @PostalAddress\\</text> }
+ <text>   @TeXHelpers.ToTeX(PostalAddress)\\</text> }
  @if (!string.IsNullOrWhiteSpace(to.PhoneNumber)) {<text>
-  @to.PhoneNumber <text>\\</text>
+  @TeXHelpers.ToTeX(to.PhoneNumber)<text>\\</text>
    </text>} 
-  E-mail:  @to.Email
+  E-mail:  @TeXHelpers.ToTeX(to.Email)
 }
 
 % Liste des produits facturés : Désignation, prix
 @if (Model.Bill!=null) { foreach (CommandLine line in Model.Bill) {
-<text>\AjouterService{@line.Description}{@line.Count}{@line.UnitaryCost.ToString("F2",CultureInfo.InvariantCulture)}
+<text>\AjouterService{@TeXHelpers.ToTeX(line.Description)}{@line.Count}{@line.UnitaryCost.ToString("F2",CultureInfo.InvariantCulture)}
 </text>} }
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -106,24 +106,24 @@
 \setlength{\parindent}{0pt}
 
 \renewcommand{\headrulewidth}{0pt}
-\cfoot{ @if (!string.IsNullOrWhiteSpace(from.UserName)) {  @from.UserName   } 
-  @if (!string.IsNullOrWhiteSpace(proaddrm)) { <text> - @proaddrm </text> }    \newline
-    \small{ E-mail:  @from.Email 
-     @if (!string.IsNullOrWhiteSpace(from.PhoneNumber)) {  <text> - Téléphone fixe:  @from.PhoneNumber </text>  } 
+\cfoot{   @TeXHelpers.ToTeX(from.UserName)  @if (!string.IsNullOrWhiteSpace(proaddrm)) { <text> - @TeXHelpers.ToTeX(proaddrm) </text> } \newline
+    \small{ E-mail:  @TeXHelpers.ToTeX(from.Email) @if (!string.IsNullOrWhiteSpace(from.PhoneNumber)) {  <text> - Téléphone fixe:  @TeXHelpers.ToTeX(from.PhoneNumber) </text>  } 
     }
 }
 
 \begin{document}
 
 % Logo de la société
-@if (from.Avatar != null) {<text>
-\includegraphics{@from.Avatar}</text>
-} else { <text>
-%\includegraphics{logo.png}</text>
+@if (from.Avatar != null) {
+<text>\includegraphics{@from.Avatar}  
+</text>
+} else { 
+<text>%\includegraphics{logo.png}
+</text>
 }
 % Nom et adresse de la société
- @from.UserName \\
- @proaddrn
+ @TeXHelpers.ToTeX(from.UserName) \\
+ @TeXHelpers.ToTeX(proaddrn)
 
 Facture n°\FactureNum