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NGif, Animated GIF Encoder for .NET

, 1 Sep 2005 CPOL
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Create animated GIF images using C#.

Sample Image - NGif.gif


Because .NET Framework can't create animated GIF images, NGif provides a way to create GIF animations in the .NET framework. It can create an animated GIF from several images and extract images from an animated GIF.

Using the code

/* create Gif */
//you should replace filepath
String [] imageFilePaths = new String[]{"c:\\01.png","c:\\02.png","c:\\03.png"}; 
String outputFilePath = "c:\\test.gif";
AnimatedGifEncoder e = new AnimatedGifEncoder();
e.Start( outputFilePath );
//-1:no repeat,0:always repeat
for (int i = 0, count = imageFilePaths.Length; i < count; i++ ) 
 e.AddFrame( Image.FromFile( imageFilePaths[i] ) );
/* extract Gif */
string outputPath = "c:\\";
GifDecoder gifDecoder = new GifDecoder();
gifDecoder.Read( "c:\\test.gif" );
for ( int i = 0, count = gifDecoder.GetFrameCount(); i < count; i++ ) 
 Image frame = gifDecoder.GetFrame( i ); // frame i
 frame.Save( outputPath + Guid.NewGuid().ToString() 
                       + ".png", ImageFormat.Png );

Points of Interest

Use Stream to replace BinaryWriter when you write a fixed-byte structured binary file.


  • 31 Aug 2005: Draft.


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

China China
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Comments and Discussions

Questionsize limit? Pin
Member 39966278-Nov-13 9:47
memberMember 39966278-Nov-13 9:47 
AnswerRe: size limit? Pin
Nicke Da Silva Manarin21-Feb-14 11:43
memberNicke Da Silva Manarin21-Feb-14 11:43 
AnswerRe: size limit? Pin
Member 106623506-Jun-14 9:42
memberMember 106623506-Jun-14 9:42 
QuestionFileStream vs Stream Pin
Member 1033860916-Oct-13 6:32
memberMember 1033860916-Oct-13 6:32 
AnswerRe: FileStream vs Stream Pin
Nicke Da Silva Manarin22-Oct-13 8:01
memberNicke Da Silva Manarin22-Oct-13 8:01 
QuestionI get black backgrounds. Has anyone ever come up with a solution for this? Pin
Member 946120617-Sep-13 20:39
memberMember 946120617-Sep-13 20:39 
SuggestionDelay method Pin
Sylvainguer17-Jul-13 21:58
memberSylvainguer17-Jul-13 21:58 
QuestionHow do i add this to my project? Pin
droidap24-May-13 8:16
memberdroidap24-May-13 8:16 
AnswerRe: How do i add this to my project? Pin
Member 1029123023-Sep-13 0:33
memberMember 1029123023-Sep-13 0:33 
QuestionI created a new dll file which is a wrapper from c++ of a gif animation if you want Pin
chocolade18-May-13 4:32
memberchocolade18-May-13 4:32 
QuestionSystem.Windows.Media.Imaging.GifBitmapEncoder Pin
Pie At The Raven16-May-13 12:14
memberPie At The Raven16-May-13 12:14 
AnswerRe: System.Windows.Media.Imaging.GifBitmapEncoder Pin
Member 1029123023-Sep-13 0:31
memberMember 1029123023-Sep-13 0:31 
QuestionNot properly disposing/closing images Pin
rdavidson228-Jul-12 11:26
memberrdavidson228-Jul-12 11:26 
QuestionThank you Pin
Member 835751315-Jun-12 16:30
memberMember 835751315-Jun-12 16:30 
QuestionBugfixed version Pin
avianbc11-Jun-12 14:22
memberavianbc11-Jun-12 14:22 
AnswerRe: Bugfixed version Pin
class_Volrath28-Jun-14 12:19
memberclass_Volrath28-Jun-14 12:19 
AnswerRe: Bugfixed version Pin
horsedrowner30-Jun-14 7:13
memberhorsedrowner30-Jun-14 7:13 
GeneralMy vote of 5 Pin
manoj kumar choubey4-Mar-12 19:47
membermanoj kumar choubey4-Mar-12 19:47 
Bug[Bug] Last two pixels of every frame is wrong. Pin
codipro7-Jan-12 2:14
membercodipro7-Jan-12 2:14 
GeneralRe: [Bug] Last two pixels of every frame is wrong. Pin
morhost28-Feb-12 4:51
membermorhost28-Feb-12 4:51 
GeneralRe: [Bug] Last two pixels of every frame is wrong. Pin
Member 1034753121-Oct-13 8:23
memberMember 1034753121-Oct-13 8:23 
GeneralTransperency Pin
JeremiasK24-Feb-11 7:45
memberJeremiasK24-Feb-11 7:45 
GeneralRe: Transperency Pin
v2leon28-Aug-11 22:49
memberv2leon28-Aug-11 22:49 
GeneralRe: Transperency Pin
maoshu22-Dec-12 0:14
membermaoshu22-Dec-12 0:14 
GeneralRe: Transperency Pin
Froogabadoodle4-Jun-13 4:48
memberFroogabadoodle4-Jun-13 4:48 
QuestionSecurity Warning [modified] Pin
jedi-samurai18-Dec-10 21:53
memberjedi-samurai18-Dec-10 21:53 
AnswerRe: Security Warning [modified] Pin
Jajnick1-Sep-12 5:14
memberJajnick1-Sep-12 5:14 
GeneralLZWEncoder Pin
tom roarty12-Dec-10 4:59
membertom roarty12-Dec-10 4:59 
QuestionGifDecoder.cs exceptions Pin
Divya Muppa29-Sep-10 10:16
memberDivya Muppa29-Sep-10 10:16 
GeneralTransparency Pin
gameguy2716-Aug-10 6:39
membergameguy2716-Aug-10 6:39 
GeneralBug involving the first frame Pin
Dataflashsabot23-Jan-10 2:56
memberDataflashsabot23-Jan-10 2:56 
GeneralI've released a derived work Pin
sbridewell24-Oct-09 10:44
membersbridewell24-Oct-09 10:44 
GeneralRe: I've released a derived work Pin
jambonbill3-Nov-09 15:39
memberjambonbill3-Nov-09 15:39 
General"The process cannot access the file xpto because it is being used by another process". Pin
chico@dsi29-Sep-09 23:52
memberchico@dsi29-Sep-09 23:52 
GeneralRe: "The process cannot access the file xpto because it is being used by another process". Pin
Rassler481-Mar-13 1:16
memberRassler481-Mar-13 1:16 
QuestionCan I release a derived work please? Pin
sbridewell4-Sep-09 9:12
membersbridewell4-Sep-09 9:12 
AnswerRe: Can I release a derived work please? Pin
jambonbill6-Oct-09 3:04
memberjambonbill6-Oct-09 3:04 
GeneralRe: Can I release a derived work please? Pin
sbridewell6-Oct-09 10:54
membersbridewell6-Oct-09 10:54 
GeneralRe: Can I release a derived work please? Pin
jambonbill6-Oct-09 14:50
memberjambonbill6-Oct-09 14:50 
GeneralRe: Can I release a derived work please? [modified] Pin
sbridewell7-Oct-09 9:10
membersbridewell7-Oct-09 9:10 
GeneralResize an animated gif background transparency Pin
vuivuivui26-Aug-09 21:23
membervuivuivui26-Aug-09 21:23 
Questionhow to force no transparency Pin
AreJay20-Aug-09 7:55
memberAreJay20-Aug-09 7:55 
Generalit can't store more than 19 frames. Pin
inamgul26-Feb-09 1:00
memberinamgul26-Feb-09 1:00 
GeneralAnimated gif Timeline Properties Pin
Daffy1012-Nov-08 22:01
memberDaffy1012-Nov-08 22:01 
Generalan better implement Pin
gOODiDEA.NET13-Oct-08 14:54
membergOODiDEA.NET13-Oct-08 14:54 
GeneralRe: an better implement Pin
ecjob21-Oct-08 4:24
memberecjob21-Oct-08 4:24 
GeneralRe: an better implement Pin
Spirch2-Jan-09 14:13
memberSpirch2-Jan-09 14:13 
GeneralRe: an better implement Pin
Ceyhun25-Jul-09 6:20
memberCeyhun25-Jul-09 6:20 
GeneralRe: an better implement Pin
Nathanael Jones5-Jan-12 6:33
memberNathanael Jones5-Jan-12 6:33 
Question怎样才能把体积减少一些啊?? Pin
ecjob11-Oct-08 8:31
memberecjob11-Oct-08 8:31 

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