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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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Fully integrated into your desktop

Convert over 150 different file formats

Convert documents, videos, audio files in one click

Need conversion functionality within your application?

Explore the API

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.


Fast Downloads

We've recently developed real-time conversions, which means you never have to leave our site to convert and download your file.

Zamzar is a cloud-based conversion tool, which means you can convert your files from anywhere and at any time.

No Software Required

Zamzar is a cloud-based conversion tool, which means you can convert your files from anywhere and at any time.

We strive to give you the best experience we possibly can, which is why we’ve added real-time file conversion and why we’re always increasing the number of file conversions we support.


We strive to give you the best experience we possibly can, which is why we’ve added real-time file conversion and why we’re always increasing the number of file conversions we support.

Zamzar featured in MakeUseOf

Highly Reputable

Zamzar featured in MakeUseOf's top 100+ best websites on the internet, and we often appear in similar lists across the web!

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.

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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PPTX Document Format

PPTX Converter

The PPTX format was developed by Microsoft and has been the default format for PowerPoint files since 2006. Along with similar updates for other Microsoft Office formats, it was designed to replace the older PPT format. The additional X at the end represents the open XML format that makes it easier for users to share and view Microsoft Office files in other programs.

Microsoft PowerPoint is used mostly for creating and delivering presentations, which can include text, graphics, animations, embedded video content and interactive elements. It is also commonly used by organisations and students to create reports, which are usually converted into PDF before sharing or publishing. As well as opening in PowerPoint itself, PPTX files will also open in Google Slides, Apple Keynote and LibreOffice. You can also use PowerPoint to save files into the older PPT format, as well as to save PowerPoint slide shows into PPS or PPSX format.

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How to convert a PDF to a PPTX file?

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

Convert to PPTX

Using Zamzar, it is possible to convert a variety of other formats to PPTX 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 simple to convert from PDF to PPTX using online conversion tools like Zamzar. Simply upload a PDF file to the free tool on Zamzar’s website, click to convert it to PPTX and then download the PowerPoint file. If you have an Adobe Acrobat subscription or free trial, you can also use this to convert a PDF file to PPTX.

A quick way to convert PDF to PPTX on a Mac is to use file conversion software or an online tool like Zamzar. You can also convert from PDF to PPTX if you pay for a subscription for Adobe Acrobat. However, with Zamzar it’s free for most users to convert PDF files to PPTX, and you don’t need to install extra software either, because the tool is cloud based. Just upload your PDF file to the three-step conversion tool on Zamzar’s website, select to convert it to PPTX and then download the presentation file.

You can use the free tool on Zamzar’s website to convert a PDF to PowerPoint without losing formatting. Just upload your PDF file to Zamzar’s secure tool, select PPTX and ‘Convert Now’, and then download your file. You’ll get a PowerPoint presentation that has the same dimensions and formatting as your original PDF. There are also some other ways you can convert PDF files, including with file conversion software or by using the ‘Export’ function on the paid version of Adobe Acrobat.

A simple way to convert a PDF to PowerPoint online is to use a free conversion tool like Zamzar. There are just three steps to Zamzar’s online tool – upload your PDF file, select PPTX format then ‘Convert Now’, and then download your new PowerPoint file. It’s also possible to export PDFs as a PowerPoint file using Adobe Acrobat online if you pay for a subscription to that software.

An easy way to convert a PDF to a PowerPoint on an iPhone is to use an online conversion tool like the one on Zamzar’s website. As there are only three steps and you don’t need to open any files, it’s simple to do on your iPhone. Just upload the PDF file to Zamzar’s website, select to convert it to PPTX format and then download the new file. If you do have an Adobe Acrobat subscription, you should also be able to use their website to convert from PDF to PowerPoint.