diff --git a/toonz/sources/image/ffmpeg/tiio_gif.cpp b/toonz/sources/image/ffmpeg/tiio_gif.cpp
index f410ddd..0676b91 100644
--- a/toonz/sources/image/ffmpeg/tiio_gif.cpp
+++ b/toonz/sources/image/ffmpeg/tiio_gif.cpp
@@ -3,6 +3,7 @@
 #include "tiio_gif.h"
 #include "trasterimage.h"
 #include "timageinfo.h"
+#include "toonz/stage.h"
 #include <QStringList>
 
 //===========================================================
@@ -151,8 +152,9 @@ class TImageReaderGif final : public TImageReader {
 public:
   int m_frameIndex;
 
-  TImageReaderGif(const TFilePath &path, int index, TLevelReaderGif *lra)
-      : TImageReader(path), m_lra(lra), m_frameIndex(index) {
+  TImageReaderGif(const TFilePath &path, int index, TLevelReaderGif *lra,
+                  TImageInfo *info)
+      : TImageReader(path), m_lra(lra), m_frameIndex(index), m_info(info) {
     m_lra->addRef();
   }
   ~TImageReaderGif() { m_lra->release(); }
@@ -160,9 +162,11 @@ public:
   TImageP load() override { return m_lra->load(m_frameIndex); }
   TDimension getSize() const { return m_lra->getSize(); }
   TRect getBBox() const { return TRect(); }
+  const TImageInfo *getImageInfo() const override { return m_info; }
 
 private:
   TLevelReaderGif *m_lra;
+  TImageInfo *m_info;
 
   // not implemented
   TImageReaderGif(const TImageReaderGif &);
@@ -198,6 +202,8 @@ TLevelReaderGif::TLevelReaderGif(const TFilePath &path)
   m_info->m_ly             = m_ly;
   m_info->m_bitsPerSample  = 8;
   m_info->m_samplePerPixel = 4;
+  m_info->m_dpix           = Stage::standardDpi;
+  m_info->m_dpiy           = Stage::standardDpi;
 }
 //-----------------------------------------------------------
 
@@ -220,9 +226,8 @@ TImageReaderP TLevelReaderGif::getFrameReader(TFrameId fid) {
   // if (IOError != 0)
   //	throw TImageException(m_path, buildAVIExceptionString(IOError));
   if (fid.getLetter() != 0) return TImageReaderP(0);
-  int index = fid.getNumber();
-
-  TImageReaderGif *irm = new TImageReaderGif(m_path, index, this);
+  int index            = fid.getNumber();
+  TImageReaderGif *irm = new TImageReaderGif(m_path, index, this, m_info);
   return TImageReaderP(irm);
 }
 
diff --git a/toonz/sources/image/ffmpeg/tiio_mp4.cpp b/toonz/sources/image/ffmpeg/tiio_mp4.cpp
index fb7d9a1..173d627 100644
--- a/toonz/sources/image/ffmpeg/tiio_mp4.cpp
+++ b/toonz/sources/image/ffmpeg/tiio_mp4.cpp
@@ -4,6 +4,7 @@
 #include "trasterimage.h"
 #include "timageinfo.h"
 #include "tsound.h"
+#include "toonz/stage.h"
 #include <QStringList>
 
 //===========================================================
@@ -129,8 +130,9 @@ class TImageReaderMp4 final : public TImageReader {
 public:
   int m_frameIndex;
 
-  TImageReaderMp4(const TFilePath &path, int index, TLevelReaderMp4 *lra)
-      : TImageReader(path), m_lra(lra), m_frameIndex(index) {
+  TImageReaderMp4(const TFilePath &path, int index, TLevelReaderMp4 *lra,
+                  TImageInfo *info)
+      : TImageReader(path), m_lra(lra), m_frameIndex(index), m_info(info) {
     m_lra->addRef();
   }
   ~TImageReaderMp4() { m_lra->release(); }
@@ -138,9 +140,11 @@ public:
   TImageP load() override { return m_lra->load(m_frameIndex); }
   TDimension getSize() const { return m_lra->getSize(); }
   TRect getBBox() const { return TRect(); }
+  const TImageInfo *getImageInfo() const override { return m_info; }
 
 private:
   TLevelReaderMp4 *m_lra;
+  TImageInfo *m_info;
 
   // not implemented
   TImageReaderMp4(const TImageReaderMp4 &);
@@ -173,6 +177,8 @@ TLevelReaderMp4::TLevelReaderMp4(const TFilePath &path) : TLevelReader(path) {
   m_info->m_ly             = m_ly;
   m_info->m_bitsPerSample  = 8;
   m_info->m_samplePerPixel = 4;
+  m_info->m_dpix           = Stage::standardDpi;
+  m_info->m_dpiy           = Stage::standardDpi;
 }
 //-----------------------------------------------------------
 
@@ -197,7 +203,7 @@ TImageReaderP TLevelReaderMp4::getFrameReader(TFrameId fid) {
   if (fid.getLetter() != 0) return TImageReaderP(0);
   int index = fid.getNumber();
 
-  TImageReaderMp4 *irm = new TImageReaderMp4(m_path, index, this);
+  TImageReaderMp4 *irm = new TImageReaderMp4(m_path, index, this, m_info);
   return TImageReaderP(irm);
 }
 
diff --git a/toonz/sources/image/ffmpeg/tiio_webm.cpp b/toonz/sources/image/ffmpeg/tiio_webm.cpp
index 0d9e2b2..d780061 100644
--- a/toonz/sources/image/ffmpeg/tiio_webm.cpp
+++ b/toonz/sources/image/ffmpeg/tiio_webm.cpp
@@ -4,6 +4,7 @@
 #include "trasterimage.h"
 #include "tsound.h"
 #include "timageinfo.h"
+#include "toonz/stage.h"
 #include <QStringList>
 
 //===========================================================
@@ -133,8 +134,9 @@ class TImageReaderWebm final : public TImageReader {
 public:
   int m_frameIndex;
 
-  TImageReaderWebm(const TFilePath &path, int index, TLevelReaderWebm *lra)
-      : TImageReader(path), m_lra(lra), m_frameIndex(index) {
+  TImageReaderWebm(const TFilePath &path, int index, TLevelReaderWebm *lra,
+                   TImageInfo *info)
+      : TImageReader(path), m_lra(lra), m_frameIndex(index), m_info(info) {
     m_lra->addRef();
   }
   ~TImageReaderWebm() { m_lra->release(); }
@@ -142,9 +144,11 @@ public:
   TImageP load() override { return m_lra->load(m_frameIndex); }
   TDimension getSize() const { return m_lra->getSize(); }
   TRect getBBox() const { return TRect(); }
+  const TImageInfo *getImageInfo() const override { return m_info; }
 
 private:
   TLevelReaderWebm *m_lra;
+  TImageInfo *m_info;
 
   // not implemented
   TImageReaderWebm(const TImageReaderWebm &);
@@ -177,6 +181,8 @@ TLevelReaderWebm::TLevelReaderWebm(const TFilePath &path) : TLevelReader(path) {
   m_info->m_ly             = m_ly;
   m_info->m_bitsPerSample  = 8;
   m_info->m_samplePerPixel = 4;
+  m_info->m_dpix           = Stage::standardDpi;
+  m_info->m_dpiy           = Stage::standardDpi;
 }
 //-----------------------------------------------------------
 
@@ -201,7 +207,7 @@ TImageReaderP TLevelReaderWebm::getFrameReader(TFrameId fid) {
   if (fid.getLetter() != 0) return TImageReaderP(0);
   int index = fid.getNumber();
 
-  TImageReaderWebm *irm = new TImageReaderWebm(m_path, index, this);
+  TImageReaderWebm *irm = new TImageReaderWebm(m_path, index, this, m_info);
   return TImageReaderP(irm);
 }
 
diff --git a/toonz/sources/toonz/filebrowser.cpp b/toonz/sources/toonz/filebrowser.cpp
index f4f06e8..73f7f9a 100644
--- a/toonz/sources/toonz/filebrowser.cpp
+++ b/toonz/sources/toonz/filebrowser.cpp
@@ -148,7 +148,8 @@ QMutex levelFileMutex;
 
 inline bool isMultipleFrameType(std::string type) {
   return (type == "tlv" || type == "tzl" || type == "pli" || type == "mov" ||
-          type == "avi" || type == "3gp");
+          type == "avi" || type == "3gp" || type == "gif" || type == "mp4" ||
+          type == "webm");
 }
 
 //=============================================================================