diff --git a/.build/check-image-package.mjs b/.build/check-image-package.mjs
new file mode 100644
index 000000000..925f85ed0
--- /dev/null
+++ b/.build/check-image-package.mjs
@@ -0,0 +1,63 @@
+// Checks that an image package (png / pdf / eps) contains exactly one
+// non-empty file per icon. Runs before publishing, so a conversion that was
+// skipped (e.g. without `rsvg-convert`) or a stale `icons/` directory from a
+// previous build cannot be released.
+//
+// Usage, from the package directory: node ../../.build/check-image-package.mjs <extension>
+import { readdirSync, statSync } from 'fs';
+import path from 'path';
+import { getAllIcons } from './helpers.mjs';
+
+const extension = process.argv[2];
+
+if (!extension) {
+  console.error('Usage: check-image-package.mjs <extension>');
+  process.exit(1);
+}
+
+const listFiles = (dir) => {
+  try {
+    return readdirSync(dir).filter((file) => file.endsWith(`.${extension}`));
+  } catch {
+    return [];
+  }
+};
+
+const sample = (files) => files.slice(0, 10).join(', ') + (files.length > 10 ? ', …' : '');
+
+let failed = false;
+
+for (const [type, icons] of Object.entries(getAllIcons())) {
+  const dir = path.resolve('icons', type);
+  const expected = new Set(icons.map((icon) => `${icon.name}.${extension}`));
+  const actual = listFiles(dir);
+  const actualSet = new Set(actual);
+
+  const missing = [...expected].filter((file) => !actualSet.has(file));
+  const extra = actual.filter((file) => !expected.has(file));
+  const empty = actual.filter(
+    (file) => expected.has(file) && statSync(path.join(dir, file)).size === 0,
+  );
+
+  for (const [label, files] of [
+    ['missing', missing],
+    ['not an icon anymore', extra],
+    ['empty', empty],
+  ]) {
+    if (files.length > 0) {
+      failed = true;
+      console.error(`${type}: ${files.length} ${label}: ${sample(files)}`);
+    }
+  }
+
+  if (missing.length === 0 && extra.length === 0 && empty.length === 0) {
+    console.log(`${type}: ${actual.length} ${extension} files, all icons present`);
+  }
+}
+
+if (failed) {
+  console.error(
+    `\nicons/ does not match the current icons. Rebuild the package before publishing.`,
+  );
+  process.exit(1);
+}
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6b97cbdcc..67c83749a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -62,6 +62,11 @@ jobs:
           ICONS_LIMIT: 100
         run: pnpm run build
 
+      - name: Check image packages
+        env:
+          ICONS_LIMIT: 100
+        run: pnpm --filter @tabler/icons-png --filter @tabler/icons-pdf --filter @tabler/icons-eps run check
+
       # The demo apps in test/test-* have no test script and import icons outside
       # the ICONS_LIMIT subset, so only the packages and the two guard suites are
       # selected. @tabler/icons-angular runs in headless Chrome via Karma, which
diff --git a/packages/icons-eps/package.json b/packages/icons-eps/package.json
index 2a007aba2..4f5993861 100644
--- a/packages/icons-eps/package.json
+++ b/packages/icons-eps/package.json
@@ -16,6 +16,8 @@
   "scripts": {
     "build": "pnpm run clean && pnpm run copy:license && pnpm run build:icons",
     "build:icons": "node build.mjs",
+    "check": "node ../../.build/check-image-package.mjs eps",
+    "prepublishOnly": "pnpm run check",
     "clean": "find dist -mindepth 1 -delete 2>/dev/null; rm -rf dist && find . ! -name '.gitkeep' -path '*/icons/*' -exec rm -rf {} +",
     "copy:license": "cp ../../LICENSE ./LICENSE"
   },
diff --git a/packages/icons-pdf/package.json b/packages/icons-pdf/package.json
index 94d305ccc..1c401b26a 100644
--- a/packages/icons-pdf/package.json
+++ b/packages/icons-pdf/package.json
@@ -21,6 +21,8 @@
   "scripts": {
     "build": "pnpm run clean && pnpm run copy:license && pnpm run build:icons",
     "build:icons": "node build.mjs",
+    "check": "node ../../.build/check-image-package.mjs pdf",
+    "prepublishOnly": "pnpm run check",
     "clean": "find dist -mindepth 1 -delete 2>/dev/null; rm -rf dist && find . ! -name '.gitkeep' -path '*/icons/*' -exec rm -rf {} +",
     "copy:license": "cp ../../LICENSE ./LICENSE"
   },
diff --git a/packages/icons-png/package.json b/packages/icons-png/package.json
index 5bedb02a0..fb25be8a2 100644
--- a/packages/icons-png/package.json
+++ b/packages/icons-png/package.json
@@ -21,6 +21,8 @@
   "scripts": {
     "build": "pnpm run clean && pnpm run copy:license && pnpm run build:icons",
     "build:icons": "node build.mjs",
+    "check": "node ../../.build/check-image-package.mjs png",
+    "prepublishOnly": "pnpm run check",
     "clean": "find dist -mindepth 1 -delete 2>/dev/null; rm -rf dist && find . ! -name '.gitkeep' -path '*/icons/*' -exec rm -rf {} +",
     "copy:license": "cp ../../LICENSE ./LICENSE"
   },