How to encrypt/ hide a code in pdf?

[Ashu22862793aov2]

i want to encrypt/ hide a javasctipt code in pdf so others can't see the code.

can i do this task?

[Nesa Nurani]

Use this tool:

https://obfuscator.io/ 

[Test Screen Name]

No, your code can be viewed in seconds. And obfuscation can be unravelled. 

[JR Boulay]

"obfuscator.io"

Don't do this unless you have complete control over the document distribution environment, a PDF containing obfuscated JavaScript is systematically detected as "malicious" by anti-virus software and email servers, and therefore eliminated.

[JR Boulay]

"No, your code can be viewed in seconds. And obfuscation can be unravelled."

Taking over a script created by someone else is always difficult, even if it is well commented and the variables are carefully named.
So taking over a script without comments and with anonymous variables is not impossible but I wish you good luck, in general it is faster to recreate one yourself.

[JR Boulay]

In my documents I minimize the JavaScripts (https://www.toptal.com/developers/javascript-minifier), in order to make them difficult to decrypt without triggering antivirus software.

When I have reasons to be suspicious, I add kilometers of useless code to drown the essential in the mass.

In French we said "Noyer le poisson" (Drown the fish).