Secure emailsas PDF.No recipient setup.
Not every recipient has S/MIME or PGP. With Conbool, you automatically encrypt confidential emails as PDFs. The recipient only needs a PDF reader.
PDF Encryption for Confidential Emails
Conbool SecureMail automatically encrypts outgoing emails as password-protected PDF files. The most secure method to send confidential content to recipients without their own encryption infrastructure.
The problem with email encryption
Recipients without certificates
S/MIME and PGP only work when both sides have certificates or keys. In practice, this is rarely the case.
Complex setup
Certificate management, key exchange, and plugin installation overwhelm many recipients and IT departments.
GDPR obligation
GDPR requires appropriate technical measures to protect personal data. Unencrypted emails are a risk.
No universal standard
There is no single encryption standard supported by all email clients. PDF is the universal solution.
How PDF encryption works
Conbool converts your email including attachments into an encrypted PDF. Automatically, policy-based, and without any effort from the recipient.
Send email
You write your email as usual in Outlook or any other client. No plugins, no extra steps.
Conbool encrypts
The SecureMail Gateway detects confidential content (or you mark the mail) and converts it into an AES-256-encrypted PDF.
Recipient opens
The recipient receives an email with the encrypted PDF as attachment. With the password, they open it in any PDF reader.
More than just a password on a PDF
Conbool PDF encryption is part of a comprehensive encryption platform.
AES-256 Encryption
Military-grade encryption for every PDF. Uncrackable with today's computing power.
Automatic Password Delivery
Passwords are delivered through a separate, secure channel. No manual exchange needed.
Policy-based Encryption
Define rules: automatically encrypt all emails to external recipients, specific domains, or with certain content.
Attachments Included
Not just the email text, but all attachments are embedded and protected in the encrypted PDF.
Intelligent Fallback
Conbool first checks if the recipient supports S/MIME or PGP. Only if not, PDF encryption is used as fallback.
Audit Trail
Every encrypted email is logged. Verifiable for GDPR audits and compliance checks.
PDF vs. S/MIME vs. Portal
Each method has its use case. Conbool automatically chooses the best one.
| Criteria | S/MIME | Portal | |
|---|---|---|---|
| Recipient needs software | Yes (certificate) | No (PDF reader) | No (browser) |
| Encryption strength | Very high | High (AES-256) | Very high (TLS + AES) |
| Readable offline | Yes | Yes | No |
| Setup effort | High | None | Minimal |
| Reply possible | Yes | No | Yes |
FAQ
Is PDF encryption GDPR-compliant?
How secure is PDF encryption really?
What happens if the recipient forgets the password?
Can the recipient reply to a PDF-encrypted email?
Does PDF encryption work with Outlook and Microsoft 365?
When should I use PDF instead of S/MIME or the portal?
Encrypted emails for every recipient.
Start now with PDF encryption. No setup on the recipient's side, full GDPR compliance.