What is the advantage of certificate based encryption?
Traditional password based PDF encryption is not safe at all. Owner passwords can be removed without even knowing the password. Tools like our Aloaha PDF Editor are able to remove passwords with just a click. An other advantage of certificate based encryption is that it can be defined who is allowed to open/view a document. It is not possible to forward a certificate secured document to a 3rd person.
Does the Aloaha PDF Crypter support password protection of PDF Documents?
No, the Aloaha PDF Crypter is a high security solution. Password protected PDF documents are not considered as secure. Our Aloaha PDF Editor for example is able to set/remove/change password protected PDF documents without having the password.
The only secure protection agains tempering of documents are digital signature. For digital rights management only certificate based encryption tools offer the needed security.
Before you encrypt the PDF document you can drag and drop any files into the files section. These files will be embedded automatically before encrypting the PDF document. You can also click on the label "Files to embed".
There are two possibilities. Either your certificate properties do not allow to be used as an encryption certificate or your certificate is not located in the proper certificate store.
In case your certificate is not allowed to be used for encryption you can apply for a free Class 1 Certificate at http://pki.aloaha.com
Certificate based PDF encryption guarantees that only the intended recipient is able to open the PDF document. With password based encryption that could never guaranteed since the password could be cracked, copied or forwarded to the 3rd party.
PDF based encryption is the ideal solution to publish eBooks, manage confidential documents or just to help you to get your database Sarbanes-Oxley compliant.
Please check also our Crypter API at
Why is the encrypt button greyed out when I drag a file into the files to attach box?
The files to attach are the files to be attached to the PDF Dokument. Not the PDF Dokument itself. The PDF Document to be encrypted should be specified with a click on the button with the 3 dots or just with dragging it left beside that button.
Can I encrypt PDF Files from within the Explorer with just a right click?
Yes, right click on the PDF File to encrypt and choose "Open With -> Choose Program". Then browse the the Aloaha PDF Crypter exe. From now on you can alway with just a right click open your PDF in our PDFCrypter.