diff --git a/home/gui/desktop/vscode.nix b/home/gui/desktop/vscode.nix
index 21c534c..0aa0ac4 100644
--- a/home/gui/desktop/vscode.nix
+++ b/home/gui/desktop/vscode.nix
@@ -20,6 +20,7 @@ with lib;
       toasty-technologies.octave
       Gimly81.matlab
       zhwu95.riscv
+      tomoki1207.pdf
     ]);
     userSettings = {
       "files.autoSave" = "onFocusChange";
diff --git a/pkgs/vscode.nix b/pkgs/vscode.nix
index df80c83..afe08f9 100644
--- a/pkgs/vscode.nix
+++ b/pkgs/vscode.nix
@@ -56,5 +56,14 @@
       sha256 = "sha256-PXaHSEXoN0ZboHIoDg37tZ+Gv6xFXP4wGBS3YS/53TY=";
     };
   };
+
+  tomoki1207.pdf = buildVscodeMarketplaceExtension {
+    mktplcRef = {
+      publisher = "tomoki1207";
+      name = "pdf";
+      version = "1.2.0";
+      sha256 = "sha256-/2u2yfAmSVBvfXIMt2VokkeYH8q8Y9Ca9YSDuwwpkq0=";
+    };
+  };
 # para obtener el sha: lib.fakeSha256
 }