diff --git a/lib/Exd/Gui/Instance.pm b/lib/Exd/Gui/Instance.pm
index 0480c7d..b6a26be 100644
--- a/lib/Exd/Gui/Instance.pm
+++ b/lib/Exd/Gui/Instance.pm
@@ -32,6 +32,47 @@ has file_format => (
         my $tmp = Exd::FileFormat->new_tmp;
         $tmp->set_script(<<'EOF');
 sub ($exd, $printer) {
+
+## DOCS
+### API
+# === $printer->qr('https://example.com');
+# Generates a QRcode for the especified url.
+#
+# === $printer->image($image);
+# Takes a gd image or file name and prints it
+# into the ticket or sticker.
+#
+# You should use the image gallery to copy
+# to clipboard the code to put inside
+# $printer->image(...);
+#
+# === $printer->print_text(['text', $gd_image], 30);
+# The first argument is a arrayref of gd images and strings
+# the text will be shown as expected, the images will
+# be shown as if they were emojies.
+#
+# The last argument is the font size.
+#
+# === $printer->print();
+# Sends the data to be printed to the configured device, this
+# should be the last thing you do in the ticket generation.
+#
+# It is not warranted to work multiple times.
+#
+# === $printer->print_n_lf( 3 );
+# Prints the specified number of line breaks.
+#
+# === $printer->font('Font name');
+# Selects a font to be used in $self->print_text
+# You should copy the contents of $printer->font(...)
+# using the font gallery. 
+#
+### Other data
+#
+# Additionally you can use freely the following modules Pango, Cairo
+# and the whole set of Perl core modules plus GD and GD::Barcode::QRcode
+#
+## End of DOCS
     $printer->print_text(
         [
             'hola mundo'
diff --git a/lib/Exd/Printer.pm b/lib/Exd/Printer.pm
index d0f1556..9ae4d2b 100644
--- a/lib/Exd/Printer.pm
+++ b/lib/Exd/Printer.pm
@@ -11,6 +11,7 @@ use Encode qw/decode/;
 use Path::Tiny;
 use Pango;
 use Cairo;
+use GD::Barcode::QRcode;
 
 use Exd::Utils::String;
 
@@ -31,11 +32,9 @@ has current_image => ( is => 'rw', );
 sub qr( $self, $url ) {
     my $tmpdir     = Path::Tiny->tempdir;
     my $image_file = $tmpdir->child('image.png');
-    my $qrcode     = Imager::QRCode->new( size => 8 );
-    my $img        = $qrcode->plot( $url, {} );
-    $img->write( file => '' . $image_file ) or die $img->errstr;
-    $self->image($image_file);
-    $self->print_text( $url, 20 );
+    my $qrcode     = GD::Barcode::QRcode->new( $url, {ModuleSize => 8});
+    $qrcode = $qrcode->plot(NoText => 0);
+    $self->image($qrcode);
 }
 
 sub image( $self, $image ) {
diff --git a/me.sergiotarxz.Exd.metainfo.xml b/me.sergiotarxz.Exd.metainfo.xml
index a5f98f8..2eb164b 100644
--- a/me.sergiotarxz.Exd.metainfo.xml
+++ b/me.sergiotarxz.Exd.metainfo.xml
@@ -30,6 +30,11 @@
 
 
 <releases>
+  <release version="v1.0.3" date="2024-11-03">
+    <description>
+      <p>Adding documentation</p>
+    </description>
+  </release>
   <release version="v1.0.2" date="2024-11-03">
     <description>
       <p>Using custom build system for Flatpak</p>
@@ -86,11 +91,11 @@
     </screenshot>
     <screenshot>
       <image>https://git.owlcode.tech/sergiotarxz/Exd/raw/commit/b58bd9f9460939ee3a3e5a8bd088cd22fd5fb53a/Screenshot%20from%202024-11-03%2012-35-24.png</image>
-      <caption>Showing image gallery embedded in file with the option to copy code to use it from the printer script.</caption>
+      <caption>Showing image gallery embedded in file.</caption>
     </screenshot>
     <screenshot>
       <image>https://git.owlcode.tech/sergiotarxz/Exd/raw/commit/b58bd9f9460939ee3a3e5a8bd088cd22fd5fb53a/Screenshot%20from%202024-11-03%2012-35-38.png</image>
-      <caption>Showing font gallery embedded in file with the option to copy code to use it from the printer script.</caption>
+      <caption>Showing font gallery embedded in file.</caption>
     </screenshot>
   </screenshots>