How to Change Image extensions In MVC

Question

Hello Friends ... How To Change Image extensions When User Uploading Image In Mvc.... I am Using ImageReSizer nuget Package Manage. Given Below Is My Code:- public static string UploadFile(HttpPostedFileBase file,string file_Name,int height,int width) { var path = Path.Combine(HttpContext.Current.Request.MapPath(UploadPath), file_Name); file.SaveAs(path); ResizeSettings resizeSetting = new ResizeSettings { Width = width, Height = height, Format = "." }; ImageBuilder.Current.Build(file, path, resizeSetting); return file_Name; }

Mohammed Deeb Hammoudeh · Answer

try to rename image before save it with the required extension as below : string extension = Path.GetExtension(fileData.FileName); string renamedImage = null ; extension = ".png" ; renamedImage = Server.MapPath( "~/Content/Images/Categories/cat" + System.Guid.NewGuid().ToString( "N" ) + extension); fileData.SaveAs(renamedImage);

Dr.Ajay Kashyap · Answer

Thank you MAEN BADWAN Sir ...

Maen Badwan · Answer

Dr. Ajay Kashyap, If you want to change the actual image data from JPG to PNG (not only the extension), you can use LEADTOOLS programming SDK which supports loading and saving many image file formats including JPEG and PNG. For example, the following code shows how you can load any supported image format (JPEG image) and save it to PNG file format on disk or in memory: +-------------------+ using (Leadtools.Codecs.RasterCodecs _leadCodecs = new Leadtools.Codecs.RasterCodecs()) { //Load the original JPEG image to a RasterImage object Leadtools.RasterImage JPEGImage = _leadCodecs.Load(file.FileName); //Save the RasterImage object to a temp PNG file on disk _leadCodecs.Save(JPEGImage, "TempFile.png", RasterImageFormat.Png, 24); //the following code saves the RasterImage object to a MemoryStream System.IO.MemoryStream Memstream = new System.IO.MemoryStream(); _leadCodecs.Save(destinationImage, Memstream, RasterImageFormat.Png, 24); Memstream.Seek(0, SeekOrigin.Begin); } +-------------------+ More details can be found here: https://www.leadtools.com/sdk/formats Note that you can add the above code in a web-service and call it from inside your ASP.NET MVC application, or you can use the code directly in your ASP.NET server side code Disclaimer: I am an employee of this library.

Fabio Silva Lima · Answer

I think you will need to open the image file in an Image bitmap object and then choose the format you want and off course define the new file, path and new extension.

Bikesh Srivastava · Answer

use this code File . Move ( myffile , Path . ChangeExtension ( myffile , ".jpg" ));

Mayank · Answer

if (Request.Files != null) { var file = Request.Files[0]; actualFileName = file.FileName; fileName = Guid.NewGuid() + ".png"; //fileName = Guid.NewGuid() + Path.GetExtension(file.FileName); int size = file.ContentLength; try { file.SaveAs(Path.Combine(Server.MapPath("~/FileUpload"), fileName)); } catch (Exception) { Message = "File upload failed! Please try again"; } } If this resolve your issue then mark as answer.

Dr.Ajay Kashyap · Answer

Mangesh Gaherwar sir ..system web httppostedfilebase to string convert Error

Mangesh G · Answer

try Path.ChangeExtension(File,".png");

Dr.Ajay Kashyap · Answer

I Want to change image Format while uploading image.. Example :- Jpg to Png

Nitin Sontakke · Answer

What do you mean by "Extensions"? In case you are referring to something I don't know! If you are referring to file extension, all you have to do is use File static class and use move method with different names. Hope it helps!