Convert JPG to PNG in C++

High-speed C++ library for converting JPG to PNG

Use C++ to obtain maximum JPG to PNG conversion speed. This is a professional software solution to import and export JPG, PNG, and many other document formats using C++.

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Convert JPG to PNG in C++

Need to convert a JPG image to PNG format programmatically? With Aspose.Words for C++ any developer can easily transform JPG to PNG with just a few lines of C++ code.

Modern image-processing C++ API creates PNG from JPG pictures with high speed. Test the quality of JPG to PNG image conversion right in a browser. Powerful C++ library allows converting JPG pictures to many popular image formats.

Save JPG as PNG in C++

The following example demonstrates how to convert JPG to PNG in C++.

Follow the easy steps to turn a JPG to PNG graphical format. Read JPG image from the local drive, then simply save it as PNG, specifying the required image format by PNG extension. For both JPG reading and PNG writing you can use fully qualified filenames. The output PNG graphical content will be identical to the original JPG image.

Code example in C++ to convert JPG to PNG format
Upload a file you want to convert
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Select the target format from the list
dotnet add package Aspose.Words.Cpp
Copy
using namespace Aspose::Words;

auto doc = MakeObject<Document>();
auto builder = MakeObject<DocumentBuilder>(doc);

auto shape = builder->InsertImage(u"Input.jpg");        
shape->GetShapeRenderer()->Save(u"Output.png", MakeObject<ImageSaveOptions>(SaveFormat::Png));
using namespace Aspose::Words; auto doc = MakeObject<Document>(u"Input.jpg"); doc->Save(u"Output.png"); using namespace Aspose::Words; auto doc = MakeObject<Document>(u"Input.jpg"); auto saveOptions = MakeObject<ImageSaveOptions>(SaveFormat::Png); for (int page = 0; page < doc->get_PageCount(); page++) { saveOptions->set_PageSet(MakeObject<PageSet>(page)); doc->Save(String::Format(u"Output_{0}.png", page + 1), saveOptions); } using namespace Aspose::Words; auto doc = MakeObject<Document>(); auto builder = MakeObject<DocumentBuilder>(doc); builder->InsertImage(u"Input.jpg"); doc->Save(u"Output.png"); using namespace Aspose::Words; auto doc = MakeObject<Document>(); auto builder = MakeObject<DocumentBuilder>(doc); auto shape = builder->InsertImage(u"Input.jpg"); shape->GetShapeRenderer()->Save(u"Output.png", MakeObject<ImageSaveOptions>(SaveFormat::Svg));
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How to convert JPG to PNG in C++

  1. Install Aspose.Words for C++.
  2. Add a library reference (import the library) to your C++ project.
  3. Open the source JPG file in C++.
  4. Call the Save() method, passing an output filename with PNG extension.
  5. Get the result of JPG conversion as PNG.

C++ library to convert JPG to PNG

There are three options to install Aspose.Words for C++ to your developer environment. Please choose one that resembles your needs and follow the step-by-step instructions:

System Requirements

You can use this C++ library to develop software on Microsoft Windows, Linux and macOS operating systems:

  • GCC >= 6.3.0 and Clang >= 3.9.1 are required for Linux
  • Xcode >= 12.5.1, Clang and libc++ are required for macOS

If you develop software for Linux or macOS, please check information on additional library dependencies (fontconfig and mesa-glu open-source packages) in Product Documentation.

Other Supported JPG Conversions

You can convert JPG to many other file formats:

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