diff --git a/doc/user-manual/fpakc_UserManual.pdf b/doc/user-manual/fpakc_UserManual.pdf
index c3b66ab..f8ab920 100644
Binary files a/doc/user-manual/fpakc_UserManual.pdf and b/doc/user-manual/fpakc_UserManual.pdf differ
diff --git a/doc/user-manual/fpakc_UserManual.tex b/doc/user-manual/fpakc_UserManual.tex
index 1b4e258..f9f9ae8 100644
--- a/doc/user-manual/fpakc_UserManual.tex
+++ b/doc/user-manual/fpakc_UserManual.tex
@@ -401,6 +401,9 @@ make
           \item \textbf{bounraiesParticle}: Logical.
                                             Determines if the properties of the boundaries are written.
                                             \textit{Warning}: Not all particle models produce this output, only those whose properties change during the simulation.
+          \item \textbf{injects}: Logical.
+                                  Determines if the properties of the injection of particles are written.
+                                  \textit{Warning}: Not all injection types produce this output, only those whose properties change during the simulation.
           \item \textbf{probes}: Array of objects.
                                  Defines the probes employed for obtaining the distribution function at specific positions.
                                  See Sec.~\ref{sec:probing} for more information.
@@ -688,6 +691,15 @@ make
                             Units of $\unit{K}$
                             Array dimension $3$.
                             Temperature in each direction.
+          \item \textbf{type}: Character.
+                               Type of injection.
+                               Available values are:
+                               \begin{itemize}
+                               \item \textbf{constant}: The flow does not change.
+                                 This is the default value if none is provided.
+                               \item \textbf{quasiNeutral}: The flow of the species is changed over time to keep the charge density close to zero at the injection surface.
+                                 The weight of the injected particles is changed.
+                               \end{itemize}
           \item \textbf{physicalSurface}: Integer.
                                           Identification of the edge in the mesh file.
           \item \textbf{particlesPerEdge}: Integer.