Render MHTML to PPSX within C++ Applications
Convert MHTML to PPSX within your C++ Applications without using Microsoft® PowerPoint
Why to Convert MHTML to PPSX?
MHTML (MIME HTML) is a web page archive format that combines HTML, images, and other resources into a single file. It is used to save webpages for offline viewing. PPSX (PowerPoint Open XML Slide Show) is a presentation format developed by Microsoft. It is used to store slideshows created using Microsoft PowerPoint. Therefore, if you are a C++ developer and want to add the feature of MHTML to PPSX conversion inside your C++ applications, you need to convert MHTML to PPSX.
How Aspose.Total helps for MHTML to PPSX Conversion?
Aspose.Total for C++ is a suite of APIs that provides a wide range of features for C++ developers. It includes APIs for PDF, Slides, Words, Cells, and Email. To convert MHTML to PPSX, you can use two APIs from Aspose.Total for C++ package. First, you can use Aspose.PDF for C++ to export MHTML to PPTX. Secondly, you can use Aspose.Slides for C++ to convert PPTX to PPSX. Both APIs are easy to use and provide a wide range of features. Moreover, they are available as NuGet packages and can be easily integrated into your C++ applications.
C++ API to Export MHTML to PPSX
- Open MHTML file using Document class reference
- Convert MHTML to PPTX by using Save method function
- Load PPTX document by using Presentation class reference
- Save the document to PPSX format using
Save
member function and set
Ppsxas SaveFormat
Get Started with C++ File Automation APIs
Install from command line as nuget install Aspose.Total.Cpp or via Package Manager Console of Visual Studio with Install-Package Aspose.Total.Cpp.
Alternatively, get the offline MSI installer or DLLs in a ZIP file from downloads .
// load MHTML file with an instance of Document class
auto doc = MakeObject<Document>(u"template.mhtml");
// save MHTML as PPTX format
doc->Save(u"PptxOutput.pptx", SaveFormat::Pptx);
// instantiate a Presentation object that represents a PPTX file
SharedPtr<Presentation> prs = MakeObject<Presentation>(u"PptxOutput.pptx");
// save the presentation as Ppsx format
prs->Save(u"output.ppsx", Aspose::Slides::Export::SaveFormat::Ppsx);
Change Password of MHTML Document via C++
In the process of rendering MHTML to PPSX, you can open a password protected MHTML and also change its password. In order to change the password of a MHTML file, you must know the owner password of that document. You can load password protected PDF document with Aspose.PDF for C++ by specifying its owner password and use ChangePasswords method to change the password.
// load an existing MHTML Document
auto doc = MakeObject<Document>(L"input.mhtml", L"owner");
// change password of MHTML Document
doc->ChangePasswords(L"owner", L"newuser", L"newuser");
// save the document
doc->Save(L"output.Doc");
Add Images From Web in PPSX File via C++
After converting MHTML to PPSX, you can also add images from web to your output document. Aspose.Slides for C++ supports operations with images in these popular formats: JPEG, PNG, BMP, GIF, and others. You can add one or several images on your computer onto a slide in a presentation. This sample code in C++ shows you how to add an image to a PPSX file
// instantiate a Presentation object that represents a PPSX file
auto pres = System::MakeObject<Presentation>("output.ppsx");
// get slide
auto slide = pres->get_Slides()->idx_get(0);
// initialize Web Client
auto webClient = System::MakeObject<WebClient>();
// get image data
auto imageData = webClient->DownloadData(System::MakeObject<Uri>(u"[REPLACE WITH URL]"));
// add image
auto image = pres->get_Images()->AddImage(imageData);
// add picture frame
slide->get_Shapes()->AddPictureFrame(ShapeType::Rectangle, 10.0f, 10.0f, 100.0f, 100.0f, image);
// save updated file
pres->Save(u"updated.ppsx", SaveFormat::Ppsx);
Explore MHTML Conversion Options with C++
What is MHTML File Format?
MHTML, short for MIME HTML, is a file format that combines HTML code and its associated resources into a single file. It stands for Multipurpose Internet Mail Extension HTML. MHTML files are commonly used for saving web pages, including all their content such as images, CSS stylesheets, and JavaScript, into a single file.
MHTML files are often created by web browsers when users save web pages for offline viewing or archiving purposes. By bundling all the necessary resources into one file, MHTML ensures that the web page can be viewed and rendered accurately, even without an internet connection or access to the original server.
The MHTML format follows the MIME standard, which is used for encoding and exchanging various types of data over the internet. It uses multipart MIME encoding to package the HTML code and associated resources into a single file. The file typically has a .mht or .mhtml file extension.
MHTML files can be opened and viewed by web browsers that support the format, such as Internet Explorer, Microsoft Edge, and Opera. Some text editors and specialized software also provide the ability to open and edit MHTML files.
The MHTML format offers advantages in terms of portability and convenience, as it allows users to save and share web pages as a single file, ensuring the preservation of the page’s layout, formatting, and linked resources. However, it’s worth noting that MHTML is not as widely used as other web formats like HTML or PDF, and compatibility may vary across different software and platforms.
What is PPSX File Format?
The PPXS file format is a file extension used by Microsoft PowerPoint to save presentations in a compressed format. It is an extension of the PPTX file format, which is the default file format for PowerPoint presentations. The “S” in PPXS stands for “compressed”, indicating that the file has undergone compression to reduce its size.
The purpose of the PPXS format is to create smaller file sizes for PowerPoint presentations, making them easier to share, transfer, and store. The compression algorithm used in PPXS files helps to reduce the overall file size while maintaining the content and formatting of the presentation.
PPXS files can be created and edited using Microsoft PowerPoint or other software that supports the PowerPoint file format. They contain various multimedia elements such as text, images, videos, audio, and animations, just like regular PowerPoint presentations.
When opening a PPXS file, PowerPoint decompresses the file to restore it to its original PPTX format, allowing users to view and edit the presentation as they would with any other PowerPoint file.
The use of the PPXS format can be beneficial when working with large presentations or when there is a need to optimize file sizes for sharing or storage purposes. However, it’s worth noting that decompressing the PPXS file to its original PPTX format may require additional processing time.