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This article shows you how iSpring Suite compresses PowerPoint presentations, which are concise and easy to understand, and will definitely brighten your eyes. I hope you can get something from the details of this article.

Audio, video, and pictures increase the interactivity of presentations, but they also add a lot of weight, so they are difficult to share.

We will introduce three ways to compress PowerPoint files to facilitate sharing and quick playback of presentations. This is a way to compress a presentation using the built-in features of PowerPoint and a compression application that helps you retain all animations and effects.

If there are many pictures in the file, the first way is to quickly compress all the pictures in the entire presentation directly in PowerPoint. The second method is that you can also use the built-in PowerPoint tool to compress videos and other media in your presentation. The third and final method is to simply convert the presentation to the HTML5 file format to reduce the file size.

Image compression

1. Open the slide that contains the image and select the picture you want to compress.

two。 On the formatting tab, click compress the picture.

3. In the pop-up window, you can specify compression settings. If you want to compress all pictures in your presentation, uncheck apply to this picture only.

Multimedia compression

1. Open the presentation that contains the multimedia files you need to compress.

two。 Click the file on the ribbon and select the Information tab.

3. Select the compress media option.

4. Here, you can choose the size of video and audio.

Note: these compression options are available in PowerPoint for Windows, but not in PowerPoint for Mac or Web for PowerPoint.

How to compress a PowerPoint presentation while maintaining its quality

If you want to share presentations online, send them by email, or otherwise distribute them, the built-in settings for PowerPoint will not be enough. Therefore, we recommend that you convert your PowerPoint presentation to HTML5.

ISpring Converter Pro ensures that all media resources contained in the slide are strictly compressed, but the look and sound are still as clear as in the original PowerPoint presentation. Although making your presentation smaller, iSpring can accurately recreate all animations and transitions and make them work in HTML5.

Unlike many other PowerPoint-to-HTML5 converters, iSpring creates a single .html file, which is a big advantage if you want to share your presentation.

This is how you try iSpring Converter and its compression features:

1. Download a free trial version of iSpring Converter Pro and install it on your computer. When you open the application, it appears like another label on the PowerPoint toolbar.

You can watch a video tutorial on how to convert a PowerPoint presentation to HTML5 through file compression, and if you like, you can skip to this article.

two。 Open the presentation and go to the iSpring Converter Pro tab. Click the publish button.

3. On the my computer tab, click for Standard delivery next to quality.

4. In the open window, you can adjust the quality level of image, audio and video. Note that the higher the media quality, the larger the output file size.

Compression preset

Using iSpring's compression preset, you can easily save and quickly apply the same compression settings to similar projects. You can also configure your own quality settings and save them as custom presets.

Image compression

Images can be converted to HTML5 format using lossy (JPEG only) or lossless (PNG only) compression. Loose is best for photos and realistic images. This type of compression can reduce the image size by more than 10 times with little quality loss. If you use charts, sketches, charts or anything with clear lines and / or shapes in your presentation, it is best to apply "lossless" compression so that you can convert images while maintaining the highest quality.

Because presentations usually contain various types of images, iSpring provides "smart" compression (JPEG and PNG). This unique option analyzes each image, automatically determines its type, and selects the best way to save it in HTML5 format. "Smart" compression optimizes the size of the presentation while still providing the highest quality images.

Audio and video compression

By default, iSpring retains the original audio quality. You can set a lower bit rate for a lower file size, but this also affects the quality of the audio. (obviously, only people with sensitive ears can detect small changes in bit rates, but even tin ears will notice a sharp drop in bit rates. )

Note: forcing the bitrate to be higher than the bitrate of the source file does not improve audio quality because the source file contains only a given amount of digital information.

ISpring sets the video compression ratio to 65% by default. You can set a lower bit rate for a lower file size, but this can also affect the quality of the video.

After making your changes, don't forget to click Save, select the HTML5 format, and then click publish.

Your presentation is now compressed. Its appearance and sound are as clear as the original PowerPoint presentation and can be shared and delivered.

Try to convert PowerPoint to HTML5 using iSpring. This is a very convenient way to compress PowerPoint files. You don't have to worry about large files or complex compression software. HTML5 format is the most compact and tidy output of PowerPoint slides.

ISpring Converter Pro is not just a PowerPoint-to-HTML5 tool. This is a powerful authoring software that allows you to embed any video (for example, video from YouTube or Vimeo) into a slide show. You can also set specific security settings for each presentation to prevent unauthorized access to your content.

The HTML5 version of the presentation can be used for mobile devices and fits the screen size and orientation of any device. Preview mode allows you to see exactly what the content looks like in the viewer. During the 14-day trial period, you can use all the features of iSpring Converter for free.

The above is how iSpring Suite compresses PowerPoint presentations. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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