Compress PowerPoint files quickly and reliably.
PPT Compressor for Windows and Mac. Makes it easy to reduce PowerPoint file size — it’s the only PPT compressor you’ll ever need.
- Instant download — no email required
- Over 3 million users worldwide
- 14-day free trial
NXPowerlite is fabulous. It compresses PPT files extremely well while still retaining image quality, much better and more customizable than you can do through PPT alone. I highly recommend it for all PPT users.
— Christopher Dunne, Big City Productions
PPT Compressor Features
Compress PPT more than 50mb
Our NXPowerLite Desktop compressor has no maximum file size limits - so you can compress 50mb, 100mb or larger files with ease.
Compress Pictures in Powerpoint
No need to compress images in PowerPoint individually with the built in image compression.
Compress Powerpoint for Email
Sending files as attachments? Automatically reduce ppt size with our Microsoft Outlook integration. No more bounce back or exceeding mailbox limits.
Optional Zip Compression
See your PPTX files reduced by up to 95% before selecting additional zip compression from the results screen to zip files together.
Drag & Drop compressor
With our PowerPoint minimizer there’s no need to compress individual elements within your presentation, just drag and drop and optimize.
Offline PPT compressor
Compress PPT files on your local Windows or Mac computer, without the need for an Internet connection. It's 100% offline software.
Windows or Mac
Shrink PowerPoint files straight from Explorer or Finder for maximum ease. Simply right-click a file and choose from the optimization options.
Flatten embedded charts
In addition to compressing images on your slides NXPowerLite can also remove Excel chart data to reduce the size of PPT files considerably.
Compress PPT to 100kb
Many applications require PPTs to be 300kb, 200kb, 100kb or below to stay under set sending limits.
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Windows 11
Windows 10
Windows 8/8.1
Windows 7
NXPowerLite integrates with 32 & 64-bit versions of the following applications (Versions 2007 - 2021):
Microsoft PowerPoint
Microsoft Word
Microsoft Excel
NXPowerLite can automatically optimize email attachments in the following email clients:
Microsoft Outlook (2007 - 2021) [32-bit & 64-bit]
Lotus Notes (6 - 11)
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macOS 13 (Ventura)
macOS 12.0 (Monterey)
macOS 11.0 (Big Sur)
macOS 10.15 (Catalina)*
Trusted by 3+ million happy customers
“We're simply amazed at the results. We're getting 80% to 95% reduction in PowerPoint file sizes, not to mention download times. Simply put, this is one of the best pieces of software I've ever used.”
— Manulife Financial
How to compress PPT/PPTX files in four simple steps
Steps
Install the NXPowerLite Desktop PowerPoint compressor.
Drag your PowerPoint file onto the NXPowerLite icon.
Hit the 'Optimize' button to reduce file size.
NXPowerLite will compress and deliver you a smaller file.
How PowerPoint compressor works
Microsoft PowerPoint files contain an abundance of content that can be optimized; from oversized images and old fast save information to hidden data in embedded objects. NXPowerLite can selectively optimize each of these elements within the files to create leaner, smaller presentations.
Resize images in PowerPoint
Images are often inserted into Microsoft® PowerPoint presentations at much larger sizes than necessary. For example, a photograph taken by a digital camera might contain ten million or more pixels, but most of this detail will not be visible unless ‘zoom’ controls are used. NXPowerLite can scale down such images by a configurable amount. For example, if NXPowerLite is configured to optimize PowerPoint® files for viewing at 1600x1200 pixels (the default setting), any images which fill an entire slide and are larger than 1600x1200 pixels will be scaled down to 1600x1200 pixels (sufficient for nearly all viewing and printing purposes).
You may also like how to find large images in PowerPoint, which shows you how to identify and jump to any large images using the Slidewise PowerPoint add-in.
JPEG conversion & compression
NXPowerLite can convert certain types of image to JPEG format, which offers high compression levels but can affect image quality. NXPowerLite can also apply additional compression to images that are already in the JPEG format. The default setting (7) will result in a barely noticeable loss of quality, even at 100% zoom.
Metafile conversion
PPTX files often contain images in WMF (‘Windows Metafile’) and EMF (‘Enhanced Metafile’) formats, which are suitable for vector graphics but are highly inefficient for representing bitmapped images (e.g. screenshots or photographs). Wherever possible, NXPowerLite will convert such images to PNG or JPEG format depending on which is smaller.
Flatten embedded charts in PPTX
When you insert a chart into PowerPoint from Excel, by default you end up with a complete copy of the Excel file saved inside your presentation. This happens each time you paste a different chart in. NXPowerLite can remove the Excel files from your deck, leaving just the chart behind. Great for ensuring you don’t accidentally share any sensitive data and also reducing file size.
Flattens embedded objects
Embedded objects (e.g. an Excel® chart embedded in a PowerPoint® presentation) are saved in Microsoft® Office documents with two representations - a 'picture' representation and a 'native' representation. If NXPowerLite is configured to flatten embedded objects, it will remove the 'native' representation, which can significantly reduce the size of files, but flattened objects can no longer be edited in the application in which they were created.
To edit embedded objects manually, read about how to find objects and charts in PowerPoint using Slidewise.
Removes cropped areas of inserted images
After inserting an image into a PowerPoint slide, it is possible to request that the image be 'cropped'. This option is available by right-clicking on an image and selecting 'Size and Position...' in Office 2007 or later, or 'Format Picture...' in earlier versions of Office. Cropping causes only part of the image to be displayed, although the entire image is preserved when the file is saved, so it is possible to undo or change the amount of cropping later. If NXPowerLite is configured to discard cropped image data, the non-visible parts of images will be removed, so will not be recoverable after optimization.
Removes "fast save" information
PowerPoint® 2003 and earlier have the option to enable 'Fast saves'. This has the effect that in some cases, deleted or edited objects will not be removed from the PowerPoint® file when changes are saved. NXPowerLite removes this 'fast save' information, preserving only the most recent edit. Previous edits are not available through PowerPoint’s® user interface anyway, but forensic tools may be able to extract some historical information from a ‘fast saved’ file.
Removes unnecessary metadata
Some image file formats (e.g. PNG or JPEG) allow additional metadata to be embedded in the image file. For example, JPEG files created by a digital camera may contain EXIF information which indicates the type of camera used, where the photograph was shot and date that it was taken. NXPowerLite removes any data which is not required to display the image.