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I tried it and immediately fell in love! It was so easy to use! After a couple conversions I bought the guys a cup of coffee. A couple more and decided this was too good to abuse! I joined! My life is so much easier!


I had a huge, problematic file to convert that couldn't go through the usual automated conversion process. The Zamzar team responded quickly to my request for help, and they took the extra steps needed to do it manually.


Used it for over a year to convert my bank statements to csv files. Great quick app, increased my productivity a lot. Also, amazing support - always helped me quickly!

Agata Wierzbicka

I've used this product for years. And customer service is excellent. Just had an issue where I was charged and I didn't agree with the charge and they took care of it, even though they didn't have to.


I have been so thankful for Zamzar’s support from the beginning of the Pandemic to the present day. Their service is first rate & their helpfulness is always the best it could be.


A very useful and professional site. The service is easy to use and the administrators are helpful and courteous.

David Shelton

It’s my first time using it. I had some complications doing it. I’m not very good at this. But I wrote to the company and I had a lot of help. I’m satisfied with customer service and with the app.

Ana Suárez

I use Zamar whenever I need to convert audio and video files from multiple submitters to 1 uniform file format for Audio and Video Editing. I can do multiple large files in a short amount of time.

Christopher Bee

Great for when you need a lot of conversions in a short time. You have directly access and can even put the subscription on for just a month.

Sabina Calis

I feel like Zamzar is an active team member, especially for projects that I work on where I am the workhorse and it saves so much time and frustration. I am spoiled with Zamzar, because they have set the bar for file conversion and customer service very high.

Deborah Herman

Trusted by employees at these brands

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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Your files are in safe hands

Zamzar has converted over 510 million files since 2006

For every 10,000 files converted on Zamzar, we'll plant a tree. By using Zamzar you are helping to make a difference to our planet

We're committed to regular charitable giving. Each month we donate at least 2% of our company profits to different charities

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!

Want to convert files straight from your desktop?

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One simple API to convert files

100s of formats for you to choose from

Documents, videos, audios, images & more...

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.

As well as a page of FAQs and a catalogue of helpful videos, we also have a dedicated support team who can help assist you with any queries you may have.

Dedicated Support

As well as a page of FAQs and a catalogue of helpful videos, we also have a dedicated support team who can help assist you with any queries you may have.

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We do exactly what we say we


We do exactly what we say we'll do – we make file conversion easy.

As we say on our homepage, we want to make file conversion easy, which is why we built our real-time conversion tool.

User Experience

As we say on our homepage, we want to make file conversion easy, which is why we built our real-time conversion tool.

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.

AZW3 eBook Format

AZW3 Converter

An AZW3 file format is also known as an Amazon KF8 e-Book file and was developed by Amazon to replace the older AZW file. AZW3 files are similar to AZW files in that they’ve been designed for the Kindle so that they support formatting, chapter markers and so on. Just like the AZW file they also have DRM protection built in meaning they can only be opened by Kindle devices – i.e. devices that are authorised to open these files. This DRM protection is Amazon’s way of trying to prevent piracy occurring and books being shared without people paying for them. The key difference between AZW3 and AZW is around AZW3’s ability to support HTML5 and CSS3 which means that these files are a lot more advanced when it comes to formatting including being able to support illustrations. As more and more new generation Kindles get sold the AZW3 format is becoming increasingly popular. To open an AZW3 file a user must have a Kindle or use a program called Calibre.

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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 AZW3 to a PDF file?

  1. 1. Choose the AZW3 file that you want to convert.
  2. 2. Select PDF as the the format you want to convert your AZW3 file to.
  3. 3. Click "Convert" to convert your AZW3 file.

Convert from AZW3

Using Zamzar, it is possible to convert AZW3 files to a variety of other formats:

AZW3 to EPUB AZW3 to FB2 AZW3 to OEB AZW3 to LIT AZW3 to LRF AZW3 to MOBI AZW3 to MP3 AZW3 to PDF AZW3 to PDB AZW3 to PML AZW3 to PRC AZW3 to RB AZW3 to TCR AZW3 to TXT

Convert to AZW3

Using Zamzar, it is possible to convert a variety of other formats to AZW3 files:


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.

It’s easy to convert AZW3 files to PDF using an online conversion tool like the one on Zamzar’s website. There are only three steps – uploading your AZW3 file, selecting ‘Convert Now’, and then downloading your PDF.

Other options include installing conversion software, such as Calibre, on your device, or logging into the Amazon website to download the document as a PDF. However, this second option only works if your e-book is on that Amazon account. The other advantage with Zamzar is that there are only three steps, and it’s all online so it doesn’t use up space on your device.

There are a few ways to open an AZW3 file online. AZW3 is Amazon’s book format, so if you have a Kindle, you can view the file on that. If you don’t have a Kindle or Amazon account and want to open an AZW3 file on your device, you will need to convert it to another format like PDF.

You can convert AZW3 files to PDF using Zamzar’s online conversion tool. Simply upload an AZW3 file, select ‘Convert Now’ and then download the PDF file. You can even convert multiple AZW3 files at the same time.

To open an AZW3 file as a PDF you will need to convert it first. One of the easiest ways to do this is using an online conversion tool like the one on Zamzar’s website. There are only three steps – upload your file, click to convert, and download the PDF.

There are other ways you can convert AZW3 to PDF, including using downloaded conversion software, such as Calibre. Once you’d installed the software, you’d need to add your file and select to convert it to PDF format. You could then save the PDF file to your device. However, with Zamzar you don’t need to install any extra software on your device.

AZW3 is Amazon’s file format for the Kindle. If you’re changing from a Kindle to another e-reader, or you want to read your ebook or brochure on another device, you’ll probably want to convert it to PDF, which is a more accessible file format. You can easily convert an AZW3 file to PDF using Zamzar’s three-step tool. Just upload an AZW3 file to Zamzar’s website, click to convert it, then download your PDF file.

If you want to open an AZW3 file in Windows, you will need to convert it to another format like PDF. It’s quick and easy to do this on Zamzar’s website using the three-step conversion tool. You don’t need to download any extra software – you only need to upload one or more AZW3 files, then select ‘Convert Now’. You can then download your PDF files and open them in a web browser on your Windows device.

Another way is by going to Amazon’s website and downloading your book as a PDF, then opening the PDF with a web browser – this only works if your ebook is on the Amazon account you are logged into, though.