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Can I protect a PDF file that includes attachments within the PDF?

Yes, but there is a limitation. The PDF will get protected and converted into both secured formats: (1) protected PDF file and (2) secure web link.  However, the file attachments do not get protected and the user will be able to access them from within Adobe Reader when the protected PDF file is sent to the user. The web viewer does not show the file attachments at all. 


If the PDF attachments are an integral part of the PDF and you need them protected as well, we recommend doing one of two things:


  1. Combine them into the PDF so it becomes 1 PDF with no attachments, and then upload them into Vitrium for protection.
  2. Add the files separately into Vitrium for protection and send all protected PDF files (or web viewer links) separately to your users.
How do I change a User password?


In Vitrium, click on the Users Tab > Select the User > Under User Info tab, click on 'Set the new Password' and enter in the Password text field provided.

Once completed, click Save & Exit and the new password entered will be applied.

Note: It is your responsibility as the administrator to inform your User about the password (even the username) changes made. 


How do I (or our end users) allow communication to Vitrium protected content?

For users that may have a stricter IT environment that might prevent the secured content from communicating back to Vitrium’s servers for authentication, we advise customers to connect with your user’s IT team to allow the communication between their network and Vitrium’s server at and at 80/443.

How do I add multiple users via CSV import?

Use the attached CSV file to import multiple users to Vitrium. The 'Username', 'Active?' and 'Password' fields are mandatory. The 'Active?' column is a boolean which requires true or false input. We recommend using the 'PasswordRecoveryEmail' column to enable users to recover their password.

Link to download sample CSV file: 

Why is my content not loading and why am I seeing a message about a proxy server? (PDF)

The problem is usually caused by proxy/firewall that interrupts the communication between the web viewer content (or Adobe program) and the authentication server.

To resolve this issue, ask your IT department to whitelist the domain on port 443 (https).  

If the customer who sent you the content is using their company domain (i.e., then ask your IT department to whitelist that domain on the same port 443 (https).

For customers on our Canadian server, you will need to ask the  IT department to whitelist the domain on port 443 (https).


Why proxy servers affect the process:

Proxy servers are designed to protect your organization from unwanted viruses, malware, and other phishing-type schemes. However, some types of communication is warranted, such as the content you're trying to access from a legitimate and trusted source.


Proxy server required configuration changes:

  1. The proxy must ALLOW direct communication
    • With the DNS address and
    • On ports 443

Firewall required configuration changes:

  1. Remove any blocks in Norton or other firewall software for
  2. The firewall must ALLOW communication with

Adobe Reader/Acrobat Trust Manager configuration changes:

  1. Open Adobe Reader/Acrobat
  2. From the top menu bar, select Edit > Preferences
  3. Under Categories, click Trust Manager
  4. Click the Change Settings button
  5. Remove any blocks to or
  6. Allow communication with or

How to check for a proxy server:

  1. Click on the Start Menu and open Settings
  2. Select Network & Internet > Proxy
  3. Under Manual proxy setup, check to see if the "Use a proxy server" box is selected

Special consideration:

  • Content providers have the option to use their own domain name. In those cases, you should contact your content provider and whitelist their domain name instead.