Last updated on 2012-11-06, by Dupont

How to Optimize SWF File for Smaller Output Size

SWF is a quite popular and common video format on Internet because of its unique feature of small size, fast speed, good compatibility, interactivity and flexibility, etc. SWF file is the final output format from Adobe Flash making programs like Flash, Flex and Flash Builder.

Sometimes you may find that the SWF file size is too large for the size limitation, for example when uploading to websites or adding to email attachment. How can you optimize SWF file for smaller output size when the SWF is already finished? Of course you can convert SWF to FLA back and recompile the SWF file, but it will take much time.

In fact a much simpler solution is right by your hand. Leawo SWF Compressor for Mac can help you to compress your SWF files with high quality, reduce SWF file size up to 70% depending on the file properties. Follow the guide below and enjoy the convenience of optimizing SWF file for smaller output size using this Mac Flash optimizer.

Full Guide

Import SWF files.

Run the program, click “Add” button or drag and drop the SWF files into the Flash SWF optimizer.

Default SWF compression settings.

For beginners and save your time and energy, Leawo SWF Compressor for Mac provides selection of predefined optimization settings: Best, Good, Basic, Medium, Sprite and Custom. Simply select one compression setting and you can optimize your Flash SWF file with ease.

Advanced SWF compression settings.

If you want, you can customize every SWF parameter setting, just press the “Show More Options” button and you will be able to choose more profound settings up to your needs. Detailed SWF parameters are separated into 5 groups: image, shape, video, audio and font.

Compress SWF files.

After all settings are applied, press “Compress” button to start optimizing SWF file for smaller size.

1. This program supports batch processing so you can import multiple SWF files and compress them all with one click.

2. Like any other compression, it is inevitablet that the output compressed SWF files will have quality loss. So compress SWF files only when it is really necessary.