Convert RAR to PDF via C# .NET or Online App

How to Convert RAR to PDF in C#

Create Archive instance with input RAR file
Extract contents of RAR file using ExtractToDictionary method of Archive
Get the list of extracted files from unzipped directory using Directory.GetFiles method - Loop through each unzipped / extracted file
Convert extracted file to PDF format using Convert method of Converter class in GroupDocs.Conversion API
Keep the list of all converted PDF files - Create instance of Merger class in GroupDocs.Merger API with first converted PDF file in the list
Loop through the list of converted PDF files starting from second converted file and merge all converted PDF files using Join method of Merge class
Finally, save the merged PDF document using Save method of Merger class

Free App for RAR to PDF Conversion

	// Supports converting zip, tar, gzip, lz, cpio, bz2, rar, xz and 7-zip file formats
	// Create Archive with input ZIP file
	using (var archive = new Archive("input.zip"))
	{
	// Extract all files in input ZIP file to unzipped folder
	archive.ExtractToDirectory("unzipped");
	}

	// Temporary List to hold names of extracted files from unzipped folder
	List<string> filesList = new List<string>();

	// Get the list of all files (with full paths) from unzipped folder
	string[] files = Directory.GetFiles("unzipped");

	// Loop through each unzipped file
	foreach (string file in files)
	{
	// Create FileInfo instance from file path
	FileInfo fi = new FileInfo(file);
	// Load the extracted file
	var converter = new GroupDocs.Conversion.Converter(fi.FullName);
	// Set the convert options for PDF format
	var convertOptions = converter.GetPossibleConversions()["pdf"].ConvertOptions;
	// Convert to PDF format
	converter.Convert(string.Format("{0}.pdf", fi.Name), convertOptions);
	// Add the file names to temporary List after converting to PDF
	filesList.Add(string.Format("{0}.pdf", fi.Name));
	}

	// Merge PDF files using GroupDocs.Merger API
	// Instantiate Merger with first input PDF document in temporary List
	using (Merger merger = new Merger(filesList[0]))
	{
	// Loop through list of converted PDF documents starting from second file
	for(int i=1; i<filesList.Count; i++)
	{
	// Call Join method of Merger class instance and pass remaining source files one by one
	merger.Join(filesList[i]);
	}

	// Call Save method of Merger class instance to save merged PDF document
	merger.Save("output.pdf");
	}

view raw convert-zip-to-pdf.cs hosted with ❤ by GitHub

Encrypt RAR Files in C#

Aspose.ZIP offers robust features for password-protecting archives, including traditional (ZipCrypto) and mixed encryption techniques. Secure your RAR files, a complete archive or selectively encrypt specific files with passwords. Additionally, you can apply popular encryption types such as AES-128, AES-192, AES-256, and 7z (7-zip) to ensure maximum security for your archives.

Illustrated below is a .NET code example showcasing the encryption of multiple RAR files using a mixed encryption technique.

Compress RAR Files or Folders

Aspose.ZIP for .NET supports a multitude of archives management features including encryption, compression and decompression of files and folders using C#. Encrypt archives with specified passwords, compress or decompress RAR files and folders according to its original structure. You can also add or delete RAR files from existing archives.

Work with archiving RAR files and folder on different operating systems such as Windows, Linux or macOS while using platforms such as Windows Azure, Mono and Xamarin.

	// Supports converting zip, tar, gzip, lz, cpio, bz2, rar, xz and 7-zip file formats
	using (FileStream zipFile = File.Open(dataDir + "CompressWithTraditionalEncryption_out.zip", FileMode.Create))
	{
	using (FileStream source1 = File.Open(dataDir + "alice29.txt", FileMode.Open, FileAccess.Read))
	{
	var archive = new Archive(new ArchiveEntrySettings(null, new TraditionalEncryptionSettings("p@s$")));
	archive.CreateEntry("alice29.txt", source1);
	archive.Save(zipFile);
	}
	}

view raw encrypt-zip-files-using-encryption-techniques.cs hosted with ❤ by GitHub

Frequently Asked Questions

How can I convert RAR to PDF using C# code examples?

Conholdate.Total for .NET offers an online RAR to PDF converter app and a range of .NET code examples for seamless archive formats conversion. It supports integration with ASP.NET Web Forms, MVC, and Docker. Developers can leverage GroupDocs or Aspose examples for greater control. With GroupDocs.Conversion API, .NET programmers can implement both front-end and backend solutions, or create custom projects using Visual Studio or the .NET CLI.

How do I customize the output PDF file?

Conholdate.Total for .NET APIs offer a variety of customization options that can be used to control the output PDF file when converting RAR to PDF. These options allow you to fine-tune the quality of the converted file, protect it with watermarks, and even add your own branding. These customization options give you complete control over the output file, ensuring that it meets your specific needs.

Which file formats for documents and images are supported by Conholdate.Total for .NET?

Conholdate.Total for .NET empowers programmers to perform document manipulation actions on RAR, PDF and 180+ popular file formats, including Word, Excel, PDF, PowerPoint, Visio, HTML, and images. It provides extensive support for .NET, C#, ASP.NET, and VB.NET applications.

Can I batch convert RAR files to other formats?

Yes, Conholdate.Total for .NET supports batch conversion of RAR documents, allowing developers to convert multiple files at once.

What licensing or cost considerations are there for using RAR to PDF conversion API?

Conholdate.Total for .NET offers a free trial that allows developers to try out the API for 30 days without any restrictions. After the trial period, developers can choose from a variety of paid plans that offer different levels of usage. The pricing and licensing terms are clearly outlined on the Conholdate website, so developers can easily find the plan that best meets their needs.

What is RAR file format?

RAR is a file format used for compressing and archiving files. It was developed by Eugene Roshal, a Russian software engineer, and was released in 1993. The RAR format is commonly used for sharing large files due to its high compression efficiency, which can often result in smaller file sizes than other compression methods. This makes it an ideal format for users who need to transfer large files over the internet or other networks.

The main advantage of RAR over other file formats is that it can be used to create multi-volume archives. This means that large files can be split into several smaller files, which can then be combined into a single file when needed. This allows for greater flexibility in storage and transmission, as users can transfer the smaller files more easily and then recombine them later.

RAR files can be password-protected and encrypted for added security. This is especially useful when transferring sensitive data over the internet. When creating a RAR file, users can choose to encrypt it with a password, which will be required to open the file. This makes RAR a popular choice for sharing confidential documents and files.

RAR files are typically identified by the .rar extension, and can be opened using WinRAR, a proprietary file archiving utility. WinRAR is available for Windows, Mac, and Linux operating systems, and supports a variety of compression formats, including RAR, ZIP, and 7Z. It also includes features such as file splitting, password protection, and recovery volumes, which can be used to recover data in case of a file corruption or system crash.

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What is PDF file format?

PDF (Portable Document Format) is a widely used document file format developed by Adobe Systems in 1993. It was specifically designed to provide a platform-independent solution for storing and sharing documents across various operating systems and over the Internet. PDFs utilize a vector-based drawing model, storing graphical elements such as lines, shapes, and images as mathematical equations. This unique approach ensures that PDFs are resolution independent, guaranteeing consistent document quality regardless of the viewing device or program.

One of the key advantages of PDFs is their support for a range of security features. Encryption, password protection, digital signatures, and document watermarking are among the security measures available. These features make PDFs highly secure and suitable for sensitive documents, such as medical records, legal documents, government forms, and invoices. The printing industry also heavily relies on PDFs to facilitate electronic communication with customers.

Creating PDFs is a straightforward process, as they can be generated from various electronic document formats, including Word documents, PowerPoint presentations, and webpages. It’s important to note that PDFs are typically not editable directly. To modify the content of a PDF, it must first be converted to a different file format that supports editing. Numerous software programs, many of which are freely available for download, offer the functionality to convert PDFs to editable formats.

PDFs have gained immense popularity and have become a standard method for document sharing due to their versatility, security features, and consistent formatting. Their compatibility across different devices and operating systems ensures seamless document access for users. Additionally, PDFs preserve the layout, fonts, and images of the original document, making them an ideal choice for sharing visually rich content.

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