Act On File Windows Compatibility Seals
Authenticate File - Powered by Act on File, 2012
How to use this service?
How to sign a file?

Fill the controls and click the "Authenticate File" button.
Use Act On File for more settings, no restrictions of any kind, to authenticate multiple files simultaneously and digitally sign documents and files.
Select File: ?
Source:  Enter URL:
Select Signature: ?
Select Public Key: ?
Source:  Enter URL:
Settings: ?
Hash type:  Flags:  Byte order: