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Employees of some of the world's most well-known brands rely on Zamzar to convert their files safely and efficiently, ensuring they have the formats they need for the job at hand. From global corporations and media companies, to respected educational establishments and newspaper publications, employees of these organisations trust Zamzar to provide the accurate and reliable conversion service they need.

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Zamzar has converted over 510 million files since 2006

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From your personal desktop to your business files, we've got you covered

We offer a range of tools, to help you convert your files in the most convenient way for you. As well as our online file conversion service, we also offer a desktop app for file conversions straight from your desktop, and an API for automated file conversions for developers. Which tool you use is up to you!

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Why choose Zamzar?

With Zamzar, file conversions are easy, reliable and convenient, so you can quickly convert your documents, images, videos, and more, to the formats you need. With faster downloads of converted files, and friendly and helpful support when you need it, you'll have everything you need to work with your files.

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Help is on Hand

We have X (formerly Twitter), Facebook and Instagram pages, where you can always ask us a question and our social media team will help you out.

We support both well-known file formats and those that are more obscure, including file formats that are 20 years old!

Multiple File Formats

We support both well-known file formats and those that are more obscure, including file formats that are 20 years old!

We add more and more conversion types each month so that you can convert exactly what you want, when you want.

1100+ File-conversion Types Supported

We add more and more conversion types each month so that you can convert exactly what you want, when you want.


Highly Reliable

We've been in existence since 2006, we’re used by companies like The New York Times, and we’ve been recommended by the Guardian and more!

Tools to suit your file conversion and file compression needs

You'll find all the conversion and compression tools you need, all in one place, at Zamzar. With over 1100 file-conversion types supported, whether you need to convert videos, audio, documents or images, you'll easily find what you need and soon have your files in the formats and sizing that work for you.

MSG Document Format

MSG Converter

The MSG file format was developed by Microsoft for its Outlook email program. Microsoft Outlook can be accessed online with internet browsers, or through software applications, which are available for all the main operating systems. MSG files can be opened within Outlook, but also with other some other applications.

MSG is short for ‘message’, which is what the files are. However, as well as email messages, Outlook will also save contact and calendar items into MSG format. Like the EML format, MSG email files include a header with the email subject, the sender and receiver, and the date and time the email was sent, as well as the body of the message. The files can also include email attachments. Contact files from Outlook that are saved/exported into MSG format would include whatever contact information had been entered, while calendar items would include the time, date and location of the meeting or diary item, plus any extra information.

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PDF Document Format

PDF Converter

PDF stands for ‘Portable Document Format’ file. It was developed by Adobe so people could share documents regardless of which device, operating system, or software they were using, while preserving the content and formatting. The format has evolved to allow for editing and interactive elements like electronic signatures or buttons. The PDF format is now a standard open format that isn’t just available under Adobe Acrobat. It is maintained by the International Organisation for Standardization (ISO).

PDF files aren’t typically created from scratch, but are usually converted, saved or ‘printed’ from other documents or images before sharing, publishing online or storing. They can be viewed on almost all devices. Creating a PDF can involve compressing a file, making it take up less storage space. You would typically create a PDF if you wanted to ensure document fidelity, to make it more secure, or to create a copy for storage.

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How to convert a MSG to a PDF file?

  1. 1. Choose the MSG file that you want to convert.
  2. 2. Select PDF as the the format you want to convert your MSG file to.
  3. 3. Click "Convert" to convert your MSG file.

Convert from MSG

Using Zamzar, it is possible to convert MSG files to a variety of other formats:


Frequently asked questions

If you’ve got any questions about converting or compressing files with Zamzar, we’re happy to help! We’ve answered a few commonly-asked questions below, to get you started, and you can find out more information about file conversion and compression with Zamzar, in our Help centre.

One of the quickest ways to convert a MSG file to PDF is by using Zamzar’s conversion tool. Accessible online through our homepage, our MSG converter is simple and free to use, with the option to have a downloaded link to the converted file emailed to you once the conversion is complete. Alternatively, you could use a downloaded MSG conversion tool, such as ZOOK, or, if you are on Windows 10, use Outlook’s ‘Print to PDF’ option.

You can open a MSG file using Outlook for Windows, by opting to view the MSG file through Outlook Web App, by installing an MSG viewer, or by using an online conversion tool to convert your file to a different file format that you can open on your device. Zamzar’s web-based converter helps you to quickly convert your MSG file to other formats like PDF and DOC, so that you can easily open them on your computer, tablet, or phone.

You can open MSG files without Outlook by downloading and installing an MSG viewer, an MSG converter, or another downloaded tool, such as SeaMonkey. However, these tools can often cost you money and will take up extra space on your device. A free and easy alternative solution is to convert your MSG file to PDF using Zamzar’s online converter, and opening your converted PDF file on your device in an internet browser, once downloaded.

You can open a MSG file on a Mac without downloading specialist software, by forwarding the MSG file to an Outlook email address and viewing the message through Outlook Web App. Alternatively, you can open your MSG file by converting it to a more easily-accessed format, such as PDF, using Zamzar’s free conversion tool. In just a few clicks you’ll have a PDF version of your file, which you can open with any internet browser.

Convert your messages to PDF on Mac using Zamzar’s free conversion tool. Our service enables you to upload your file, select your preferred output format, and download your conversion from the same page - no software download or installation required. It’s as simple as: 1) upload your MSG file, 2) convert to PDF, 3) download! Easy peasy. If online conversion isn’t your thing, you can download specialist tools or applications such as MSG-viewer software or SeaMonkey internet application suite.