Why is my file so large?

The most common reasons for files to become too large are: Images, Embedded Fonts, Embedded Charts & Objects, Audio or Video. We’ve created a blog post series for the most common file formats, explaining why they get big and what you can do about it - follow the links below for more information:• Why is my PowerPoint file so big?(https://neuxpower.com/blog/why-is-my-powerpoint-so-big-and-how-can-i-reduce-the-size-of-the-ppt) • Why is Word document so big? (https://neuxpower.com/blog/why-is-word-document-so-big-how-can-you-reduce-the-size-of-the-doc) • Why is Excel file so big? (https://neuxpower.com/blog/why-is-excel-file-so-large-how-to-reduce-excel-file-size) • Why is PDF file so big? (https://neuxpower.com/blog/why-is-pdf-file-so-big-and-how-to-reduce-pdf-file-size) • Why is my PNG so big? (https://neuxpower.com/blog/why-is-my-png-file-so-large-and-how-to-compress-png-images) • What to do with big videos? (https://neuxpower.com/blog/how-to-compress-large-video-files-for-free). We also make a great tool called Slidewise (https://neuxpower.com/slidewise-powerpoint-add-in) that you can use to see exactly why any PowerPoint file is big.

Can I compress multiple files at once?

Yes, our software, NXPowerlite Desktop can compress up to 10,000 files at a time, which is great for compressing small folders of content quickly (https://neuxpower.com/nxpowerlite-desktop). For larger volumes of files, we recommend our Server Compressor software: https://neuxpower.com/nxpowerlite-server.

What files can be compressed?

PDF Documents (*.pdf), Microsoft PowerPoint 97-2024 + M365 presentations (*.ppt; .pptx; .pps; .ppsx; .potm; .ppsm; .potx; .ppa; .ppam), Microsoft Word 97-2024 + M365 documents (*.doc; .docx; .dot; *.dotm), Microsoft Excel 97-2024 + M365 spreadsheets (*.xls; .xlsx; .xlt; .xltm; .xla; .xlsm; .xltm; *.xlam), JPEG images (*.jpg; .jpeg; .jpe; .jif; .jfi), PNG images (*.png) & TIFF images (*.tiff; *.tif)

Is there a free trial for the file compressor?

Yes, we offer a fully functional 14-day free trial without any sign-up. Once installed, your trial will be automatically activated, and it'll work just like the full software without adding any watermarks. The only limitation is a batch size of 20 files, compared to the 10,000 files that the paid version can compress.

How much does the file compressor cost?

NXPowerLite Desktop has a one-off cost of $57 for a single user. Licenses are perpetual and can be installed on up to 3 machines for a single user. Volume discounts are available starting at 10 users, and non-profits can get a discount code by emailing us.

What are the system requirements?

System requirements depend on the platform. The Windows version is compatible with Windows 7 and above and integrates with Microsoft Office and Outlook versions 2007 - 2024 & M365. The macOS version supports macOS 26, 15, 14, and 13 with recent software versions, and older versions support earlier macOS releases.

File Compressor Software

File compression software that makes it really easy to reduce file size of your bloated documents and images.

Instant download — no email required
Over 3 million users worldwide
14-day free trial

Windows Free Trial

Mac Free Trial

Only $57

Also available File Compressor Server

Trusted by 3+ million happy customers

“The NXPowerLite app has become a right arm, a tool I simply could not do without, it’s the best file compressor money can buy and total value for money. The developers ensure the app is updated, and I’ve migrated from Windows to Mac and it works perfectly on both platforms. Great stuff!!!”

Chris Casey
Concept Communications International

File Compressor Features

Trusted file compressor software

NXPowerLite was first released in 2001 and the software has been regularly improved ever since. It is super-reliable and backed by incredible support.

Official Adobe® PDF Technology

NXPowerLite uses the official Adobe® PDF Library, the same technology that Adobe® use to build Acrobat®. This library provides the perfect strong foundation for our PDF compression.

File compression software for Windows and Mac

Compress files on your local computer — it's 100% offline software. Compress files directly from Explorer or Finder using the right-click menu options.

Avoid Split & Merge

Avoid having to split and merge large files in order to send them, compress files instead and keep your documents small and intact.

Compress files for email

Our File Compressor automatically reduces email attachments to fit within mailbox limits. Read our blog for more details on how to compress files for email.

Compress + No format change

Compressed files stay in the same format with the same file extension. Supports PDF, PowerPoint, Word, Excel, JPEG, PNG and TIFF files.

How to compress files with our Compressor

Follow these steps to compress your files:

Install the NXPowerLite file compressor software
Drag one or more files onto the NXPowerLite icon
Choose your compression level: Balanced, Basic or Strong. (Custom compression settings also available)
Click the 'Optimize' button to quickly reduce the file size

Download for Windows

Download For Mac

Frequently Asked Questions

The most common reasons for files to become too large are:
- Images
- Embedded Fonts
- Embedded Charts & Objects
- Audio or Video
We’ve created a blog post series for the most common file formats, explaining why they get big and what you can do about it - follow the links below for more information:
We also make a great tool called Slidewise that you can use to see exactly why any PowerPoint file is big.
Yes, our software, NXPowerlite Desktop can compress up to 10,000 files at a time, which is great for compressing small folders of content quickly
For larger volumes of files we recommend our Server Compressor software.
- PDF Documents (*.pdf)
- Microsoft PowerPoint 97-2024 + M365 presentations (*.ppt; .pptx; .pps; .ppsx; .potm; .ppsm; .potx; .ppa; .ppam)
- Microsoft Word 97-2024 + M365 documents (*.doc; .docx; .dot; *.dotm)
- Microsoft Excel 97-2024 + M365 spreadsheets (*.xls; .xlsx; .xlt; .xltm; .xla; .xlsm; .xltm; *.xlam)
- JPEG images (*.jpg; .jpeg; .jpe; .jif; .jfi)
- PNG images (*.png)
- TIFF images (*.tiff; *.tif)
Yes, we offer a fully functional 14-day free trial without any sign-up. Once installed, your trial will be automatically activated, and it'll work just like the full software without adding any watermarks. The only limitation is a batch size of 20 files, compared to the 10,000 files that the paid version can compress.
NXPowerLite Desktop costs just $57 one-off cost for a single user. It is licensed per user rather than per machine, so if you buy a license you can install it on up to 3 machines so long as you are the only user of the software.
Licenses are perpetual, so they don't expire. Once you buy a license you can use that major version of the software for as long as you want without paying additional fees.
Volume discounts start at 10 users, so the more licences you buy the less you pay per user. Visit our support site for more information on multi-user licensing.
If you work at a non-profit then simply email us with your work email address to help us verify your details and we will then send you out a discount code.
Windows
Windows 7 and above
NXPowerLite integrates with 32 & 64-bit versions of the following applications (Versions 2007 - 2024 & M365):
- Microsoft PowerPoint
- Microsoft Word
- Microsoft Excel
NXPowerLite can automatically optimize email attachments in the following email clients:
- Microsoft Outlook (2007 - 2024 & M365) [32-bit & 64-bit]
macOS
- macOS 26 Tahoe
- macOS 15 Sequoia
- macOS 14 (Sonoma)
- macOS 13 (Ventura)
Version 10.0.2 supports macOS 11 - 14
Version 9 supports macOS 10.15 - 13
Version 8 supports macOS 10.12 - 10.14
Version 7 supports macOS OS X 10.10 & 10.11
Version 6 supports OS X 10.9 or earlier.
All older versions links

For me it is the best file compressor mainly because it reduces file sizes without compromising the quality of the images. This allows you to send large files with high quality.

— Dieter Schultz