diff --git a/app/composables/useResumeData.ts b/app/composables/useResumeData.ts
index 9c24cb4..640f677 100644
--- a/app/composables/useResumeData.ts
+++ b/app/composables/useResumeData.ts
@@ -10,6 +10,13 @@ export function useResumeData() {
   // Reactive reference to resume data
   const resume = computed(() => resumeData)
 
+  function getCurrentMonthYearTag(): string {
+    const now = new Date()
+    const year = now.getFullYear()
+    const monthName = now.toLocaleString('en-US', { month: 'long' })
+    return `${monthName.replace(/\s+/g, '')}_${year}`
+  }
+
   /**
    * Format YYYY-MM date string to readable format
    * @param date - Date string in YYYY-MM format (e.g., "2023-01")
@@ -36,12 +43,13 @@ export function useResumeData() {
 
   /**
    * Generate PDF filename from resume data
-   * @returns Filename in format "FirstName_LastName_Resume.pdf"
+   * Best practice: include a stable date tag so recipients can distinguish versions.
+   * @returns Filename in format "FirstName_LastName_Resume_December_2025.pdf"
    */
   function getPdfFilename(): string {
     const name = resumeData.basics.name
     const filename = name.replace(/\s+/g, '_')
-    return `${filename}_Resume.pdf`
+    return `${filename}_Resume_${getCurrentMonthYearTag()}.pdf`
   }
 
   return {
diff --git a/server/api/resume/pdf.get.ts b/server/api/resume/pdf.get.ts
index 03eba75..0909dad 100644
--- a/server/api/resume/pdf.get.ts
+++ b/server/api/resume/pdf.get.ts
@@ -160,7 +160,10 @@ export default defineEventHandler(async (event) => {
     })
 
     const query = getQuery(event)
-    const filename = (query.filename as string) || 'Ali_Arghyani_Resume.pdf'
+    const now = new Date()
+    const year = now.getFullYear()
+    const monthName = now.toLocaleString('en-US', { month: 'long' })
+    const filename = (query.filename as string) || `Ali_Arghyani_Resume_${monthName.replace(/\s+/g, '')}_${year}.pdf`
     const download = query.download === 'true'
 
     setResponseHeaders(event, {