diff --git a/docx-core/src/documents/mod.rs b/docx-core/src/documents/mod.rs
index e6cb188..c348487 100644
--- a/docx-core/src/documents/mod.rs
+++ b/docx-core/src/documents/mod.rs
@@ -920,13 +920,20 @@ fn collect_images_from_paragraph(
             for child in &mut run.children {
                 if let RunChild::Drawing(d) = child {
                     if let Some(DrawingData::Pic(pic)) = &mut d.data {
-                        images.push((
-                            pic.id.clone(),
-                            // For now only png supported
-                            format!("media/{}.png", pic.id),
-                        ));
                         let b = std::mem::take(&mut pic.image);
-                        image_bufs.push((pic.id.clone(), b));
+                        let buf = image_bufs
+                            .iter()
+                            .find(|x| x.0 == pic.id.clone() || x.1 == b.clone());
+                        if buf.as_ref().is_none() {
+                            images.push((
+                                pic.id.clone(),
+                                // For now only png supported
+                                format!("media/{}.png", pic.id),
+                            ));
+                            image_bufs.push((pic.id.clone(), b));
+                        } else {
+                            pic.id = buf.unwrap().0.clone();
+                        }
                     }
                 }
             }