diff --git a/src/main/resources/templates/web/contentsBbs/ContentsBbsReg.html b/src/main/resources/templates/web/contentsBbs/ContentsBbsReg.html
index 1cc8c9d..1463186 100644
--- a/src/main/resources/templates/web/contentsBbs/ContentsBbsReg.html
+++ b/src/main/resources/templates/web/contentsBbs/ContentsBbsReg.html
@@ -153,6 +153,10 @@
 						</div>
 						<input type="file" id="file" accept="image/jpeg, image/jpg, image/png" style="display: none;"
 							multiple>
+						<div class="photo_guide"
+							style="padding: 10px; margin-top: 10px; background: #f8f9fa; border-radius: 5px; font-size: 13px; color: #555;">
+							<p style="margin: 0;">※ 권장 사이즈: <strong>800 x 450 px</strong></p>
+						</div>
 
 						<label style="margin-top: 10px; font-size: 13px; font-weight: 700;">썸네일 하단글</label>
 						<textarea id="thumbnailBottomTxt" placeholder="썸네일 하단글을 입력해주세요."></textarea>
@@ -174,6 +178,10 @@
 							<img id="contentsImg" src="" />
 						</div>
 						<input type="file" id="content_file" style="display: none;" placeholder="첨부파일을 입력해주세요." />
+						<div class="photo_guide"
+							style="padding: 10px; margin-top: 10px; background: #f8f9fa; border-radius: 5px; font-size: 13px; color: #555;">
+							<p style="margin: 0;">※ 권장 사이즈: <strong>2000 x XXXX px</strong></p>
+						</div>
 					</div>
 				</div>
 			</div>
diff --git a/src/main/resources/templates/web/contentsBbs/ContentsBbsUpd.html b/src/main/resources/templates/web/contentsBbs/ContentsBbsUpd.html
index 80c6102..8d0aac5 100644
--- a/src/main/resources/templates/web/contentsBbs/ContentsBbsUpd.html
+++ b/src/main/resources/templates/web/contentsBbs/ContentsBbsUpd.html
@@ -158,6 +158,10 @@
 						</div>
 						<input type="file" id="file" accept="image/jpeg, image/jpg, image/png" style="display: none;"
 							multiple>
+						<div class="photo_guide"
+							style="padding: 10px; margin-top: 10px; background: #f8f9fa; border-radius: 5px; font-size: 13px; color: #555;">
+							<p style="margin: 0;">※ 권장 사이즈: <strong>800 x 450 px</strong></p>
+						</div>
 
 						<label style="margin-top: 10px; font-size: 13px; font-weight: 700;">썸네일 하단글</label>
 						<textarea id="thumbnailBottomTxt" placeholder="썸네일 하단글을 입력해주세요."></textarea>
@@ -179,6 +183,10 @@
 							<img id="contentsImg" src="" />
 						</div>
 						<input type="file" id="content_file" style="display: none;" placeholder="첨부파일을 입력해주세요." />
+						<div class="photo_guide"
+							style="padding: 10px; margin-top: 10px; background: #f8f9fa; border-radius: 5px; font-size: 13px; color: #555;">
+							<p style="margin: 0;">※ 권장 사이즈: <strong>2000 x XXXX px</strong></p>
+						</div>
 					</div>
 				</div>
 			</div>