diff --git a/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/chrome.css b/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/chrome.css
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--- /dev/null
+++ b/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/chrome.css
@@ -0,0 +1,6 @@
+
+@-moz-document regexp(".*\\.pdf(\\?.*)?$") {
+  .page {
+      filter: invert(1) grayscale(1) contrast(75%) !important;
+  }
+}
diff --git a/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/image.png b/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/image.png
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diff --git a/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/readme.md b/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/readme.md
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index 00000000..cafe6f56
--- /dev/null
+++ b/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/readme.md
@@ -0,0 +1,4 @@
+
+# Dark Docs
+
+Say goodbye to blinding white documents! Dark Docs applies a dark mode to PDF documents in Zen Browser, reducing eye strain and making long reading sessions easier on your eyes.
diff --git a/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/theme.json b/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/theme.json
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--- /dev/null
+++ b/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/theme.json
@@ -0,0 +1,14 @@
+{
+    "id": "c1466e17-b19f-442e-9967-eeb00f996ee0",
+    "name": "Dark Docs",
+    "description": "Say goodbye to blinding white documents! Dark Docs applies a dark mode to PDF documents.",
+    "homepage": "https://github.com/SleepInfinity/dark-docs",
+    "style": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/chrome.css",
+    "readme": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/readme.md",
+    "image": "https://raw.githubusercontent.com/zen-browser/theme-store/main/themes/c1466e17-b19f-442e-9967-eeb00f996ee0/image.png",
+    "author": "SleepInfinity",
+    "version": "1.0.0",
+    "tags": [],
+    "createdAt": "2025-03-12",
+    "updatedAt": "2025-03-12"
+}
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