Why to Convert EPUB to GIF
The EPUB format is a popular format for digital books and documents, but it is not supported by all applications. Converting EPUB to GIF can be useful for creating images of documents that can be shared easily and viewed on any device. GIF images are also smaller in size than other image formats, making them ideal for sharing online.
How Aspose.Total Helps for EPUB to GIF Conversion
Aspose.Total for C++ is a comprehensive file format automation library that allows C++ developers to easily convert EPUB to GIF in two simple steps. Firstly, the Aspose.PDF for C++ API can be used to convert EPUB file format to DOC. Secondly, the advanced Word Document Processing API, Aspose.Words for C++, can be used to export DOC to GIF. This makes it easy for developers to quickly and easily convert EPUB to GIF without having to write complex code. Aspose.Total for C++ also provides a range of other features, such as the ability to create, edit, and convert a variety of other file formats, including PDF, HTML, and Excel.
C++ API to Render EPUB to GIF
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 EPUB file with an instance of Document class reference
auto doc = MakeObject<Document>(u"sourceFile.epub");
// save EPUB as a DOC
doc->Save(u"DocOutput.doc", SaveFormat::Doc);
// load DOC with an instance of Document
System::SharedPtr<Document> wordDoc = System::MakeObject<Document>(u"DocOutput.doc");
// save document as Gif
wordDoc->Save(u"output.Gif");
Change Password of EPUB Document via C++
In the process of rendering EPUB to GIF, you can open a password protected EPUB and also change its password. In order to change the password of a EPUB 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 EPUB Document
auto doc = MakeObject<Document>(L"input.epub", L"owner");
// change password of EPUB Document
doc->ChangePasswords(L"owner", L"newuser", L"newuser");
// save the document
doc->Save(L"output.Doc");
Restrict GIF File Editing via C++
You can also restrict GIF file editing using using Aspose.Words for C++ API. Sometimes you may need to limit the ability to edit a document and only allow certain actions with it. API enables you to control the way you restrict the content using the ProtectionType enumeration parameter. The following code example demonstrates how to restrict editing in a document so only editing in form fields is possible.
// load Doc with an instance of Document
auto doc = System::MakeObject<Document>("input.doc");
// document protection only works when document protection is turned and only editing in form fields is allowed.
doc->Protect(ProtectionType::AllowOnlyFormFields, u"password");
// save the protected document.
doc->Save(u"Protected.Gif");