Modern C++ library allows C++ developers to convert JPG to JPG image format with a few lines of code. JPG image conversion engine analyses the original graphical content, and exports the combined picture to JPG format.
Use C++ to convert JPG to JPG image format with maximum flexibility and speed. Run online live demo and check the highest JPG image quality right in a browser. JPG Conversion API supports a bunch of useful options.
To convert several JPG to JPG just use C++ library that handles all low-level details.
Convert multiple JPG images and save the result as a single JPG image. If you develop code in C++, image format conversion will be simpler than it sounds. See C++ example that iterates through image files and combines them into JPG:
dotnet add package Aspose.Words.Cpp
Copy
using namespace Aspose::Words;
std::vector<String> fileNames { u"Input1.jpg", u"Input2.jpg" };
auto doc = MakeObject<Document>();
auto builder = MakeObject<DocumentBuilder>(doc);
std::vector<SharedPtr<Shape>> shapes;
for (const auto& fileName : fileNames)
{
auto shape = builder->InsertImage(fileName);
shapes.push_back(shape);
}
// Calculate the maximum width and height and update page settings
// to crop the document to fit the size of the pictures.
auto maxWidth = *std::max_element(shapes.begin(), shapes.end(),
[](auto lhs, auto rhs) return lhs->get_Width() < rhs->get_Width(); );
double maxHeight =
std::accumulate(shapes.begin(), shapes.end(), 1.0,
[](double result, auto shape) return result + shape->get_Height(); );
auto pageSetup = builder->get_PageSetup();
pageSetup->set_PageWidth(maxWidth->get_Width());
pageSetup->set_PageHeight(maxHeight);
pageSetup->set_TopMargin(0);
pageSetup->set_LeftMargin(0);
pageSetup->set_BottomMargin(0);
pageSetup->set_RightMargin(0);
doc->Save(u"Output.jpg");
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:
You can use this C++ library to develop software on Microsoft Windows, Linux and macOS operating systems:
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.
You can merge JPG to many other file formats: