How to Obfuscate SWF Files for Protection

If you don’t want your SWF files to be stolen by others and post on some websites else, claiming to be their own, you need to protect your SWF file before publishing online. Here we will introduce a SWF obfuscator to help your protect your SWF files.

The reasons why we obfuscate SWF files not encrypt them with a password are:

1. We still need to publish the output SWF files on web, which is impossible for password encrypted SWF files.

2. Once the password protection is cracked, your SWF files will be completely open to the hacker.

3. Obfuscate renames variables, features etc. in a definite way and thus make the subsequent compilation impossible.

Of course the obfuscation protected SWF files are not 100% percent safe, but the more difficult a thing is to steal, the less chance there is of it being stolen. Leawo SWF Obfuscator is a professional SWF obfuscator to help you easily obfuscate ActionScript Code to make the source code unreadable even to SWF Decompilers.

Free download Leawo SWF Encrypt and install it on your computer, then follow the below steps to obfuscate your SWF files.

Full Guide


Step 1: Load SWF files.

There are two different ways to import SWF files to the program. Load irrelevant SWF files for common files and load relevant SWF files to ensure successful invocation of SWF files after encryption.

Step 2: Choose SWF flash encryption parameters.

Choose the SWF encryption settings for every sing SWF file or apply the same setting to all the imported SWF files.

Step 3: Specify an output location and start encryption.

Set output directory in Output frame to save encrypted SWF flash files. Click the right bottom Encrypt button to start to encrypt SWF flash files upon the encryption ways you choose.

1. Protected SWF files could not be encrypted again by this SWF Encrypt program.

2. The encrypted SWF files can be played normally with Adobe Flash Player.

3. Since the Flash SWF encryption is nonreversible, so do remember to back up the original SWF files.

Video GuideSoftware


Leawo SWF Encrypt

Obfuscate your SWF files to make it difficult for others to decompile it

Platfrom: Windows 8/7/Vista/XP


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