diff --git a/PanoPainter-OSX/Info.plist b/PanoPainter-OSX/Info.plist
index 76ceea6..6d7fbcb 100644
--- a/PanoPainter-OSX/Info.plist
+++ b/PanoPainter-OSX/Info.plist
@@ -4,6 +4,33 @@
 <dict>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>en</string>
+	<key>CFBundleDocumentTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>ppi</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>pp-icon-square</string>
+			<key>CFBundleTypeIconFiles</key>
+			<array/>
+			<key>CFBundleTypeMIMETypes</key>
+			<array/>
+			<key>CFBundleTypeName</key>
+			<string>PanoPainter Image</string>
+			<key>CFBundleTypeRole</key>
+			<string>Editor</string>
+			<key>LSIsAppleDefaultForType</key>
+			<true/>
+			<key>LSItemContentTypes</key>
+			<array>
+				<string>public.panorama-image</string>
+			</array>
+			<key>LSTypeIsPackage</key>
+			<integer>0</integer>
+		</dict>
+	</array>
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIconFile</key>
@@ -30,5 +57,67 @@
 	<string>Copyright © 2018 OmixLab Ltd. All rights reserved.</string>
 	<key>NSPrincipalClass</key>
 	<string>NSApplication</string>
+	<key>UTExportedTypeDeclarations</key>
+	<array>
+		<dict>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
+			<key>UTTypeDescription</key>
+			<string>PanoPainter Image</string>
+			<key>UTTypeIconFile</key>
+			<string>pp-icon-square</string>
+			<key>UTTypeIconFiles</key>
+			<array/>
+			<key>UTTypeIdentifier</key>
+			<string>public.panorama-image</string>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>com.apple.ostype</key>
+				<array>
+					<string>****</string>
+				</array>
+				<key>public.filename-extension</key>
+				<array>
+					<string>ppi</string>
+				</array>
+				<key>public.mime-type</key>
+				<array>
+					<string>image/ppi</string>
+				</array>
+			</dict>
+		</dict>
+	</array>
+	<key>UTImportedTypeDeclarations</key>
+	<array>
+		<dict>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
+			<key>UTTypeDescription</key>
+			<string>PanoPainter Image</string>
+			<key>UTTypeIconFile</key>
+			<string>pp-icon-square</string>
+			<key>UTTypeIdentifier</key>
+			<string>com.panopainter.image</string>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>com.apple.ostype</key>
+				<array>
+					<string>****</string>
+				</array>
+				<key>public.filename-extension</key>
+				<array>
+					<string>ppi</string>
+				</array>
+				<key>public.mime-type</key>
+				<array>
+					<string>image/ppi</string>
+				</array>
+			</dict>
+		</dict>
+	</array>
 </dict>
 </plist>
diff --git a/PanoPainter-OSX/main.cpp b/PanoPainter-OSX/main.cpp
index 9504f26..ec896cf 100644
--- a/PanoPainter-OSX/main.cpp
+++ b/PanoPainter-OSX/main.cpp
@@ -21,6 +21,9 @@ std::deque<std::packaged_task<void()>> tasklist;
 std::mutex task_mutex;
 
 @implementation View
+{
+    NSSharingService *airdrop_service;
+}
 - (void)async_lock
 {
     CGLLockContext([glctx CGLContextObj]);
@@ -81,8 +84,39 @@ std::mutex task_mutex;
     }
     return ret;
 }
+- (void)share_file:(NSString*)file_path
+{
+    NSURL *url = [NSURL fileURLWithPath:file_path];
+    NSArray *objectsToShare = @[url];
+//
+//    UIActivityViewController *controller = [[UIActivityViewController alloc] initWithActivityItems:objectsToShare applicationActivities:nil];
+//
+//    // Exclude all activities except AirDrop.
+//    NSArray *excludedActivities = @[UIActivityTypePostToTwitter, UIActivityTypePostToFacebook,
+//                                    UIActivityTypePostToWeibo,
+//                                    UIActivityTypeMessage, UIActivityTypeMail,
+//                                    UIActivityTypePrint, UIActivityTypeCopyToPasteboard,
+//                                    UIActivityTypeAssignToContact, UIActivityTypeSaveToCameraRoll,
+//                                    UIActivityTypeAddToReadingList, UIActivityTypePostToFlickr,
+//                                    UIActivityTypePostToVimeo, UIActivityTypePostToTencentWeibo];
+//    controller.excludedActivityTypes = excludedActivities;
+//
+//    // Present the controller
+//    [self presentViewController:controller animated:YES completion:nil];
+    [airdrop_service performWithItems:objectsToShare];
+}
+- (NSWindow *)sharingService:(NSSharingService *)sharingService sourceWindowForShareItems:(NSArray *)items sharingContentScope:(NSSharingContentScope *)sharingContentScope
+{
+    return self.window;
+}
+- (NSView *)anchoringViewForSharingService:(NSSharingService *)sharingService showRelativeToRect:(NSRect *)positioningRect preferredEdge:(NSRectEdge *)preferredEdge
+{
+    return self;
+}
 - (instancetype)initWithFrame:(NSRect)frameRect
 {
+    airdrop_service = [NSSharingService  sharingServiceNamed:NSSharingServiceNameSendViaAirDrop];
+    airdrop_service.delegate = self;
     gl_ready = false;
     NSOpenGLPixelFormatAttribute attrs[] =
     {
@@ -134,6 +168,12 @@ std::mutex task_mutex;
     App::I.init();
     CGLUnlockContext([[self openGLContext] CGLContextObj]);
     gl_ready = true;
+
+    if ([file2open length] > 0)
+    {
+        LOG("open file %s", [file2open UTF8String]);
+        App::I.open_document([file2open UTF8String]);
+    }
 }
 
 - (void)terminateGL
@@ -428,6 +468,7 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
     Window* window;
     Controller* controller;
     View* view;
+    NSString* file2open;
 }
 @end @implementation AppOSX
 - (instancetype)init
@@ -437,6 +478,13 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
     [self setDelegate:self];
     return self;
 }
+- (BOOL)application:(NSApplication *)sender openFile:(NSString *)filename
+{
+    LOG("open file %s", [filename UTF8String]);
+    //App::I.open_document([filename UTF8String]);
+    file2open = filename;
+    return YES;
+}
 - (void)applicationWillTerminate:(NSNotification *)notification
 {
     [view terminateGL];
@@ -458,9 +506,10 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
     NSRect r = NSMakeRect(0, 0, App::I.width, App::I.height);
     
     view = [[View alloc] initWithFrame:r];
+    view->file2open = file2open;
     controller = [[Controller alloc] initWithWindow:window];
     App::I.osx_view = view;
-
+    
     auto style = NSTitledWindowMask|NSMiniaturizableWindowMask|NSResizableWindowMask|NSClosableWindowMask;
     window = [[Window alloc] initWithContentRect:r styleMask:style backing:NSBackingStoreBuffered defer:NO];
     [window setDelegate:controller];
@@ -471,7 +520,7 @@ static CVReturn MyDisplayLinkCallback(CVDisplayLinkRef displayLink, const CVTime
     [window setAcceptsMouseMovedEvents:true];
     [window makeFirstResponder:view];
     view->wnd = window;
-    
+
     auto menubar = [NSMenu new];
     auto appMenuItem = [NSMenuItem new];
     [menubar addItem:appMenuItem];
diff --git a/PanoPainter-OSX/main.h b/PanoPainter-OSX/main.h
index 6a2d0a2..d668f61 100644
--- a/PanoPainter-OSX/main.h
+++ b/PanoPainter-OSX/main.h
@@ -9,13 +9,14 @@
 @interface Controller : NSWindowController<NSWindowDelegate>
 @end
 
-@interface View : NSOpenGLView
+@interface View : NSOpenGLView<NSSharingServiceDelegate>
 {
     @public Window* wnd;
     CVDisplayLinkRef dl;
     NSOpenGLContext* glctx;
     _CGLContextObject* cgl;
     bool gl_ready;
+    @public NSString* file2open;
 }
 - (void)close;
 - (void)terminateGL;
@@ -24,4 +25,5 @@
 - (void)async_swap;
 - (std::string)pick_file:(NSArray<NSString*>*)types;
 - (std::string)pick_dir;
+- (void)share_file:(NSString*)file_path;
 @end
diff --git a/PanoPainter.vcxproj b/PanoPainter.vcxproj
index b96e741..7dcc96b 100644
--- a/PanoPainter.vcxproj
+++ b/PanoPainter.vcxproj
@@ -77,7 +77,7 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
     <LinkIncremental>true</LinkIncremental>
-    <IncludePath>libs\glm;libs\glew-2.0.0\include;libs\stb;libs\tinyxml2;libs\yoga;libs\curl-win\include;libs\jpeg;libs\wacom;libs\bugtrap-client\include;libs\poly2tri\poly2tri;libs\base64;$(IncludePath)</IncludePath>
+    <IncludePath>libs\glm;libs\glew-2.0.0\include;libs\stb;libs\tinyxml2;libs\yoga;libs\curl-win\include;libs\jpeg;libs\wacom;libs\bugtrap-client\include;libs\poly2tri\poly2tri;libs\base64;libs\sqlite3;$(IncludePath)</IncludePath>
     <LibraryPath>libs\curl-win\lib\dll-$(Configuration)-$(PlatformShortName);libs\glew-2.0.0\lib\Release\$(Platform);libs\bugtrap-client\lib;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -87,7 +87,7 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <LinkIncremental>false</LinkIncremental>
-    <IncludePath>libs\glm;libs\glew-2.0.0\include;libs\stb;libs\tinyxml2;libs\yoga;libs\curl-win\include;libs\jpeg;libs\wacom;libs\bugtrap-client\include;libs\poly2tri\poly2tri;libs\base64;$(IncludePath)</IncludePath>
+    <IncludePath>libs\glm;libs\glew-2.0.0\include;libs\stb;libs\tinyxml2;libs\yoga;libs\curl-win\include;libs\jpeg;libs\wacom;libs\bugtrap-client\include;libs\poly2tri\poly2tri;libs\base64;libs\sqlite3;$(IncludePath)</IncludePath>
     <LibraryPath>libs\curl-win\lib\dll-$(Configuration)-$(PlatformShortName);libs\glew-2.0.0\lib\Release\$(Platform);libs\bugtrap-client\lib;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
@@ -167,6 +167,10 @@
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClCompile Include="libs\sqlite3\sqlite3.c">
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">NotUsing</PrecompiledHeader>
+      <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Release|x64'">NotUsing</PrecompiledHeader>
+    </ClCompile>
     <ClCompile Include="src\action.cpp" />
     <ClCompile Include="src\app.cpp" />
     <ClCompile Include="src\app_cloud.cpp" />
@@ -292,6 +296,8 @@
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="libs\sqlite3\sqlite3.h" />
+    <ClInclude Include="libs\sqlite3\sqlite3ext.h" />
     <ClInclude Include="src\action.h" />
     <ClInclude Include="src\app.h" />
     <ClInclude Include="src\asset.h" />
diff --git a/PanoPainter.vcxproj.filters b/PanoPainter.vcxproj.filters
index 44b9b38..22a875b 100644
--- a/PanoPainter.vcxproj.filters
+++ b/PanoPainter.vcxproj.filters
@@ -40,6 +40,9 @@
     <Filter Include="extras">
       <UniqueIdentifier>{e631ac80-1b9b-424f-8adf-e2bab71a566d}</UniqueIdentifier>
     </Filter>
+    <Filter Include="libs\sqlite3">
+      <UniqueIdentifier>{ef44d179-f28b-458c-b3df-be2895553149}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="src\app.cpp">
@@ -264,6 +267,9 @@
     <ClCompile Include="src\node_dialog_resize.cpp">
       <Filter>Source Files\ui</Filter>
     </ClCompile>
+    <ClCompile Include="libs\sqlite3\sqlite3.c">
+      <Filter>libs\sqlite3</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="src\app.h">
@@ -473,6 +479,12 @@
     <ClInclude Include="src\node_dialog_resize.h">
       <Filter>Header Files\ui</Filter>
     </ClInclude>
+    <ClInclude Include="libs\sqlite3\sqlite3.h">
+      <Filter>libs\sqlite3</Filter>
+    </ClInclude>
+    <ClInclude Include="libs\sqlite3\sqlite3ext.h">
+      <Filter>libs\sqlite3</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="PanoPainter.rc">
diff --git a/PanoPainter.xcodeproj/project.pbxproj b/PanoPainter.xcodeproj/project.pbxproj
index 7a2fe85..6794ba6 100644
--- a/PanoPainter.xcodeproj/project.pbxproj
+++ b/PanoPainter.xcodeproj/project.pbxproj
@@ -134,8 +134,6 @@
 		ADC0EB3F1FBDC748004079BB /* node_colorwheel.cpp in Sources */ = {isa = PBXBuildFile; fileRef = ADC0EB3B1FBDC748004079BB /* node_colorwheel.cpp */; };
 		ADC0EB431FC36E88004079BB /* node_dialog_picker.cpp in Sources */ = {isa = PBXBuildFile; fileRef = ADC0EB401FC36E88004079BB /* node_dialog_picker.cpp */; };
 		ADC0EB441FC36E88004079BB /* node_dialog_picker.cpp in Sources */ = {isa = PBXBuildFile; fileRef = ADC0EB401FC36E88004079BB /* node_dialog_picker.cpp */; };
-		ADC6B6C8216E0F0000DED870 /* sqlite3.c in Sources */ = {isa = PBXBuildFile; fileRef = ADC6B6C7216E0F0000DED870 /* sqlite3.c */; };
-		ADC6B6C9216E0F0D00DED870 /* sqlite3.c in Sources */ = {isa = PBXBuildFile; fileRef = ADC6B6C7216E0F0000DED870 /* sqlite3.c */; };
 		ADC6F4621F3AFF2C004177FA /* node_dialog_layer_rename.cpp in Sources */ = {isa = PBXBuildFile; fileRef = ADC6F4611F3AFA2B004177FA /* node_dialog_layer_rename.cpp */; };
 		ADC6F4631F3AFF2D004177FA /* node_dialog_layer_rename.cpp in Sources */ = {isa = PBXBuildFile; fileRef = ADC6F4611F3AFA2B004177FA /* node_dialog_layer_rename.cpp */; };
 		ADC6F4671F3E66FB004177FA /* app_dialogs.cpp in Sources */ = {isa = PBXBuildFile; fileRef = ADC6F4651F3E66FA004177FA /* app_dialogs.cpp */; };
@@ -200,6 +198,8 @@
 		ADE4911F1F86E65E00FB8E92 /* sweep.cc in Sources */ = {isa = PBXBuildFile; fileRef = ADE491131F86D09100FB8E92 /* sweep.cc */; };
 		ADEBA9062069A4F40085AE16 /* objc_utils.cpp in Sources */ = {isa = PBXBuildFile; fileRef = ADEBA9052069A4F40085AE16 /* objc_utils.cpp */; };
 		ADEBA9092069A50E0085AE16 /* objc_utils.cpp in Sources */ = {isa = PBXBuildFile; fileRef = ADEBA9082069A50E0085AE16 /* objc_utils.cpp */; };
+		ADF396DD216F749200024722 /* AppKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = ADF396DB216F6BD800024722 /* AppKit.framework */; };
+		ADF396DF216FA6C900024722 /* pp-icon-square.png in Resources */ = {isa = PBXBuildFile; fileRef = ADF396DE216FA6C700024722 /* pp-icon-square.png */; };
 		ADFD32152166AA0800F46F85 /* GenerateThumbnailForURL.c in Sources */ = {isa = PBXBuildFile; fileRef = ADFD32142166AA0800F46F85 /* GenerateThumbnailForURL.c */; };
 		ADFD32172166AA0800F46F85 /* GeneratePreviewForURL.c in Sources */ = {isa = PBXBuildFile; fileRef = ADFD32162166AA0800F46F85 /* GeneratePreviewForURL.c */; };
 		ADFD32192166AA0800F46F85 /* main.c in Sources */ = {isa = PBXBuildFile; fileRef = ADFD32182166AA0800F46F85 /* main.c */; };
@@ -467,6 +467,8 @@
 		ADEBA9052069A4F40085AE16 /* objc_utils.cpp */ = {isa = PBXFileReference; explicitFileType = sourcecode.cpp.objcpp; fileEncoding = 4; name = objc_utils.cpp; path = src/objc_utils.cpp; sourceTree = SOURCE_ROOT; };
 		ADEBA9072069A50E0085AE16 /* objc_utils.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = objc_utils.h; path = src/objc_utils.h; sourceTree = SOURCE_ROOT; };
 		ADEBA9082069A50E0085AE16 /* objc_utils.cpp */ = {isa = PBXFileReference; explicitFileType = sourcecode.cpp.objcpp; fileEncoding = 4; name = objc_utils.cpp; path = src/objc_utils.cpp; sourceTree = SOURCE_ROOT; };
+		ADF396DB216F6BD800024722 /* AppKit.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = AppKit.framework; path = System/Library/Frameworks/AppKit.framework; sourceTree = SDKROOT; };
+		ADF396DE216FA6C700024722 /* pp-icon-square.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; name = "pp-icon-square.png"; path = "extra/pp-icon-square.png"; sourceTree = "<group>"; };
 		ADFD32122166AA0800F46F85 /* QLPlugin.qlgenerator */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = QLPlugin.qlgenerator; sourceTree = BUILT_PRODUCTS_DIR; };
 		ADFD32142166AA0800F46F85 /* GenerateThumbnailForURL.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; path = GenerateThumbnailForURL.c; sourceTree = "<group>"; };
 		ADFD32162166AA0800F46F85 /* GeneratePreviewForURL.c */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.c; path = GeneratePreviewForURL.c; sourceTree = "<group>"; };
@@ -487,6 +489,7 @@
 				AD0E5CB11ECC726C00C35669 /* OpenGL.framework in Frameworks */,
 				AD0E5CB01ECC726400C35669 /* Cocoa.framework in Frameworks */,
 				AD0E5CAF1ECC726000C35669 /* CoreFoundation.framework in Frameworks */,
+				ADF396DD216F749200024722 /* AppKit.framework in Frameworks */,
 				AD0E5CAE1ECC725400C35669 /* CoreVideo.framework in Frameworks */,
 				ADC8F776216675A90084ECAD /* HockeySDK.framework in Frameworks */,
 			);
@@ -689,6 +692,7 @@
 		AD58E0461E107411006ACC15 = {
 			isa = PBXGroup;
 			children = (
+				ADF396DE216FA6C700024722 /* pp-icon-square.png */,
 				AD2286BC214E97460074567E /* scripts */,
 				AD58E0731E3421CB006ACC15 /* libs */,
 				AD58E0611E17F23D006ACC15 /* data */,
@@ -789,6 +793,7 @@
 		AD759B631F2793AD00211963 /* Frameworks */ = {
 			isa = PBXGroup;
 			children = (
+				ADF396DB216F6BD800024722 /* AppKit.framework */,
 				ADFD32232166B12A00F46F85 /* Foundation.framework */,
 				AD06989820CC6C3E0010825F /* OSX */,
 				AD06989520CC6C210010825F /* iOS */,
@@ -1077,6 +1082,7 @@
 			buildActionMask = 2147483647;
 			files = (
 				AD0E5CE41ECC76BA00C35669 /* data in Resources */,
+				ADF396DF216FA6C900024722 /* pp-icon-square.png in Resources */,
 				AD0E5CA51ECC6F2B00C35669 /* Assets.xcassets in Resources */,
 				AD0E5CA81ECC6F2B00C35669 /* MainMenu.xib in Resources */,
 			);
@@ -1303,7 +1309,6 @@
 				AD0E5CD61ECC72AD00C35669 /* bezier.cpp in Sources */,
 				AD0E5CB61ECC72AD00C35669 /* Yoga.c in Sources */,
 				ADE4911D1F86E65E00FB8E92 /* shapes.cc in Sources */,
-				ADC6B6C9216E0F0D00DED870 /* sqlite3.c in Sources */,
 				ADC0EB441FC36E88004079BB /* node_dialog_picker.cpp in Sources */,
 				AD0E5CC51ECC72AD00C35669 /* node_panel_color.cpp in Sources */,
 				AD0E5CD71ECC72AD00C35669 /* brush.cpp in Sources */,
@@ -1426,7 +1431,6 @@
 				ADD7D2A01EBF9E1C00D5A897 /* image.cpp in Sources */,
 				ADD7D2A11EBF9E1C00D5A897 /* texture.cpp in Sources */,
 				AD0E119C1ECA215600CDA6BB /* app_events.cpp in Sources */,
-				ADC6B6C8216E0F0000DED870 /* sqlite3.c in Sources */,
 				ADFD32272166C9A000F46F85 /* node_dialog_resize.cpp in Sources */,
 				ADBC8C551FAFD0520094B339 /* app_cloud.cpp in Sources */,
 				ADD7D2961EBF9E1C00D5A897 /* brush.cpp in Sources */,
@@ -1520,7 +1524,7 @@
 				);
 				INFOPLIST_FILE = "PanoPainter-OSX/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 10.7;
+				MACOSX_DEPLOYMENT_TARGET = 10.8;
 				PRODUCT_BUNDLE_IDENTIFIER = com.omixlab.panopainter.osx;
 				PRODUCT_NAME = PanoPainter;
 				PROVISIONING_PROFILE_SPECIFIER = "";
@@ -1544,7 +1548,7 @@
 				);
 				INFOPLIST_FILE = "PanoPainter-OSX/Info.plist";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks";
-				MACOSX_DEPLOYMENT_TARGET = 10.7;
+				MACOSX_DEPLOYMENT_TARGET = 10.8;
 				PRODUCT_BUNDLE_IDENTIFIER = com.omixlab.panopainter.osx;
 				PRODUCT_NAME = PanoPainter;
 				PROVISIONING_PROFILE_SPECIFIER = "";
diff --git a/QLPlugin/Info.plist b/QLPlugin/Info.plist
index ae2bec3..75d8e66 100644
--- a/QLPlugin/Info.plist
+++ b/QLPlugin/Info.plist
@@ -7,6 +7,8 @@
 	<key>CFBundleDocumentTypes</key>
 	<array>
 		<dict>
+			<key>CFBundleTypeIconFile</key>
+			<string>pp-icon-square</string>
 			<key>CFBundleTypeExtensions</key>
 			<array>
 				<string>ppi</string>
@@ -16,7 +18,7 @@
 				<string>image/ppi</string>
 			</array>
 			<key>CFBundleTypeName</key>
-			<string>PPI</string>
+			<string>PanoPainter Image</string>
 			<key>CFBundleTypeRole</key>
 			<string>QLGenerator</string>
 			<key>LSItemContentTypes</key>
@@ -70,6 +72,8 @@
 	<key>UTImportedTypeDeclarations</key>
 	<array>
 		<dict>
+			<key>UTTypeIconFile</key>
+			<string>pp-icon-square</string>
 			<key>UTTypeConformsTo</key>
 			<array>
 				<string>public.data</string>
diff --git a/data/layout.xml b/data/layout.xml
index 48b3a22..0506a8e 100644
--- a/data/layout.xml
+++ b/data/layout.xml
@@ -454,7 +454,7 @@
         </border>
         <node dir="row">
           <node grow="1"><text os="win,osx" id="path" text="Workind dir: path" text-wrap-width="470" font-face="arial" font-size="11" margin="10 5 10 10"/></node>
-          <button id="btn-path" text="Set destination dir" width="140" height="30" margin="0 10 0 0"/>
+          <button os="win,osx" id="btn-path" text="Set destination dir" width="140" height="30" margin="0 10 0 0"/>
         </node>
         <node id="footer" height="40" dir="row" align="flex-end" justify="flex-end" pad="10">
           <node grow="1"><button id="btn-delete" text="Delete Project" width="100" height="30" margin="0 10 0 0" color="1 0 0 1"/></node>
@@ -862,6 +862,10 @@ Here's a list of what's available in this release.
         <icon icon="picture_go" width="20"/>
         <text text="Export JPG" grow="1" margin="0 0 0 5" font-face="arial" font-size="11"/>
       </button-custom>
+      <button-custom id="file-share" text="Menu" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
+        <icon icon="picture_go" width="20"/>
+        <text text="Share" grow="1" margin="0 0 0 5" font-face="arial" font-size="11"/>
+      </button-custom>
       <button-custom id="file-resize" text="Menu" height="40" align="center" color=".2" pad="0 0 0 10" dir="row">
         <icon icon="arrow_out" width="20"/>
         <text text="Resize Document" grow="1" margin="0 0 0 5" font-face="arial" font-size="11"/>
diff --git a/extra/pp-icon-square.png b/extra/pp-icon-square.png
new file mode 100644
index 0000000..79adc42
Binary files /dev/null and b/extra/pp-icon-square.png differ
diff --git a/src/app.cpp b/src/app.cpp
index 360cd55..8b8c031 100644
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -208,15 +208,13 @@ int progress_callback_upload(void *clientp, curl_off_t dltotal,
     return 0;
 }
 
-void App::download(std::string filename, std::function<void(float)> progress)
+void App::download(std::string url, std::string dest_filepath, std::function<void(float)> progress)
 {
     CURL *curl = curl_easy_init();
     if (curl)
     {
-        auto dest = data_path + "/" + filename;
-        FILE* fp = fopen(dest.c_str(), "wb");
-        std::string url = "https://panopainter.com/cloud/cloud-dwl.php?file=" + filename;
-        LOG("download %s to %s", url.c_str(), dest.c_str());
+        FILE* fp = fopen(dest_filepath.c_str(), "wb");
+        LOG("download %s to %s", url.c_str(), dest_filepath.c_str());
         curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
         curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
         curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_data_write);
diff --git a/src/app.h b/src/app.h
index 136b831..5fe8870 100644
--- a/src/app.h
+++ b/src/app.h
@@ -100,6 +100,7 @@ public:
     void pick_file(std::vector<std::string> types, std::function<void(std::string path)> callback);
     void pick_dir(std::function<void(std::string path)> callback);
     void display_file(std::string path);
+    void share_file(std::string path);
     void showKeyboard();
     void hideKeyboard();
     void initLog();
@@ -164,7 +165,7 @@ public:
     void cloud_upload_all();
     void cloud_browse();
     void upload(std::string filename, std::string name = "", std::function<void(float)> progress = nullptr);
-    void download(std::string filename, std::function<void(float)> progress = nullptr);
+    void download(std::string url, std::string dest_filepath, std::function<void(float)> progress = nullptr);
     bool check_license();
     
     std::shared_ptr<NodeProgressBar> show_progress(const std::string& title);
diff --git a/src/app_cloud.cpp b/src/app_cloud.cpp
index 7e23d95..7a778cf 100644
--- a/src/app_cloud.cpp
+++ b/src/app_cloud.cpp
@@ -146,7 +146,8 @@ void App::cloud_browse()
             m->m_message->set_text("Download in progress");
             async_redraw();
             async_end();
-            download(dialog->selected_path, [this,m](float p){
+            std::string url = "https://panopainter.com/cloud/cloud-dwl.php?file=" + dialog->selected_file;
+            download(url, dialog->selected_path, [this,m](float p){
                 static char progress[256];
                 sprintf(progress, "Download in progress %.2f%%", p * 100.f);
                 async_start();
diff --git a/src/app_dialogs.cpp b/src/app_dialogs.cpp
index a23f759..97a82d9 100644
--- a/src/app_dialogs.cpp
+++ b/src/app_dialogs.cpp
@@ -253,7 +253,11 @@ void App::dialog_browse()
         // load thumbnail test
         auto dialog = std::make_shared<NodeDialogBrowse>();
         dialog->m_manager = &layout;
-        dialog->search_path = work_path;
+#ifdef __IOS__
+        dialog->search_paths = {work_path, data_path + "/Inbox"};
+#else
+        dialog->search_paths = {work_path};
+#endif
         dialog->init();
         dialog->create();
         dialog->loaded();
diff --git a/src/app_events.cpp b/src/app_events.cpp
index 503e316..76eacf7 100644
--- a/src/app_events.cpp
+++ b/src/app_events.cpp
@@ -151,6 +151,21 @@ void App::display_file(std::string path)
 #endif
 }
 
+void App::share_file(std::string path)
+{
+    if (path.empty())
+        return;
+#ifdef __IOS__
+#elif __OSX__
+    dispatch_async(dispatch_get_main_queue(), ^{
+        [osx_view share_file:[NSString stringWithUTF8String:path.c_str()]];
+    });
+#elif __ANDROID__
+#elif _WIN32
+    // not implemented
+#endif
+}
+
 bool App::mouse_down(int button, float x, float y, float pressure, kEventSource source, bool eraser)
 {
     redraw = true;
diff --git a/src/app_layout.cpp b/src/app_layout.cpp
index c1aa2b5..a32564f 100644
--- a/src/app_layout.cpp
+++ b/src/app_layout.cpp
@@ -420,6 +420,12 @@ void App::init_menu_file()
                     popup->mouse_release();
                     popup->destroy();
                 };
+            if (auto b = popup->find<NodeButtonCustom>("file-share"))
+                b->on_click = [this](Node*) {
+                    share_file(doc_path);
+                    popup->mouse_release();
+                    popup->destroy();
+                };
             if (auto b = popup->find<NodeButtonCustom>("file-resize"))
                 b->on_click = [this](Node*) {
                     dialog_resize();
diff --git a/src/node_dialog_browse.cpp b/src/node_dialog_browse.cpp
index 0134596..c79de91 100644
--- a/src/node_dialog_browse.cpp
+++ b/src/node_dialog_browse.cpp
@@ -88,7 +88,7 @@ void NodeDialogBrowse::init_controls()
             realpath(path.c_str(), path_buffer);
 #endif
             working_path->set_text_format("Destination dir: %s", path_buffer);
-            search_path = path;
+            search_paths = {path};
             clear_list();
             init_list();
             async_update();
@@ -122,19 +122,29 @@ void NodeDialogBrowse::clear_list()
 
 void NodeDialogBrowse::init_list()
 {
-    auto names = Asset::list_files(search_path, false, ".*\\.ppi");
-    for (const auto& n : names)
+    std::vector<std::tuple<std::string/*file-name*/, std::string/*path*/>> files;
+    for (auto sp : search_paths)
     {
-        ui::Image thumb = ui::Canvas::I->thumbnail_read(search_path + "/" + n);
+        auto items = Asset::list_files(sp, false, ".*\\.ppi");
+        for (const auto& i : items)
+        {
+            files.push_back({i, sp + '/' + i});
+        }
+    }
+    for (const auto& f : files)
+    {
+        auto f_name = std::get<0>(f);
+        auto f_path = std::get<1>(f);
+        ui::Image thumb = ui::Canvas::I->thumbnail_read(f_path);
         if (thumb.width == 0 || thumb.height == 0)
             continue;
 
         auto node = new NodeDialogBrowseItem;
         node->m_manager = m_manager;
         node->init();
-        node->m_text->set_text(n.c_str());
-        node->m_path = search_path + "/" + n;
-        node->m_file_name = n;
+        node->m_text->set_text(f_name.c_str());
+        node->m_path = f_path;
+        node->m_file_name = f_name;
         node->on_selected = [&](NodeDialogBrowseItem* target) {
             if (target == current)
                 return;
diff --git a/src/node_dialog_browse.h b/src/node_dialog_browse.h
index fe5fb3b..94fb226 100644
--- a/src/node_dialog_browse.h
+++ b/src/node_dialog_browse.h
@@ -39,7 +39,7 @@ public:
     std::string selected_path;
     std::string selected_file;
     std::string selected_name;
-    std::string search_path;
+    std::vector<std::string> search_paths;
     virtual Node* clone_instantiate() const override;
     virtual void clone_finalize(Node* dest) const override;
     virtual void init() override;