PDF Postman
encryptomatic.com
What it is
PDF Postman is a Windows Outlook add-in that turns email messages and attachments into password-protected PDF files. It encrypts messages and attachments using AES-128 or AES-256. Recipients can open encrypted PDFs with a PDF viewer and password, without special software or registration. The add-in converts HTML, rich-text or text messages into formatted PDFs. Users can include encrypted attachments in a PDF, protect attachments without the message, or make PDFs from attached files. The download page lists Outlook Desktop 365, 2021, 2019, 2016 and 2013 on 32-bit or 64-bit Windows, with Windows 11 or 10,.NET Framework 4.8 or later, 4 GB RAM and 2 GB of disk space as requirements. After a 15-day trial, it reverts to a free mode limited to five encrypted PDF messages per month. Listed paid options range from $79.99 a month for one license to $3,999 a month for 100 licenses; licenses are perpetual, with maintenance and upgrades optionally renewable at 25%. The maker says email remains on the user's PC rather than being sent to the cloud.
Spec sheet
- Purpose
- PDF Postman is an Outlook add-in that converts email messages and attachments into password-protected PDF files for sending securely.Read 7 Oct 2026 · encryptomatic.com
- Intended users
- The maker describes PDF Postman as suitable for small office or home office users and corporate professionals, including those with experienced IT departments.Read 7 Oct 2026 · encryptomatic.com
- Free plan
- YesRead 20 Sep 2026 · encryptomatic.com
- Support
- The maker provides an online support ticket link and lists support by Encryptomatic LLC.Read 7 Oct 2026 · encryptomatic.com
- Headquarters
- Fargo, North Dakota, United StatesRead 28 Sep 2026 · encryptomatic.com
- Founded
- 2005Read 28 Sep 2026 · encryptomatic.com
- Admin access controls
- YesRead 20 Sep 2026 · encryptomatic.com
- Attachments
- Users can encrypt attachments inside the PDF, protect attachments without the message, or create PDFs from attached files.Read 7 Oct 2026 · encryptomatic.com
- Encryption
- It protects messages and attachments with AES-128 or AES-256 bit encryption.Read 7 Oct 2026 · encryptomatic.com
- Enterprise deployment
- The feature list says enterprise deployment is available through an MSI file and users can work from a centralized password database.Read 7 Oct 2026 · encryptomatic.com
- Export status
- The download page says PDF Postman is approved for export by the U.S. Department of Commerce as a mass-market encryption product.Read 7 Oct 2026 · encryptomatic.com
- Formatting
- It converts HTML, rich-text, or text email messages into formatted encrypted PDFs.Read 7 Oct 2026 · encryptomatic.com
- Free mode
- After the 15-day trial, the software reverts to a free mode that allows up to 5 encrypted PDF messages per month.Read 7 Oct 2026 · encryptomatic.com
- Local processing
- The maker says its Windows desktop products do not send email information to the cloud and emails remain on the user's PC.Read 7 Oct 2026 · encryptomatic.com
- Outlook compatibility
- The download page lists Microsoft Outlook Desktop 365, 2021, 2019, 2016, and 2013 on 32-bit or 64-bit Windows.Read 7 Oct 2026 · encryptomatic.com
- Outlook integration
- YesRead 20 Sep 2026 · encryptomatic.com
- Recipient access
- Recipients can open encrypted PDF files using a PDF viewer and password, without special software or registration.Read 7 Oct 2026 · encryptomatic.com
- Recipient verification
- passwordRead 20 Sep 2026 · encryptomatic.com
- Secure delivery
- attachmentRead 20 Sep 2026 · encryptomatic.com
- Windows requirements
- The download page specifies Windows 11 or 10, .NET Framework 4.8 or later, 4 GB RAM, and 2 GB of disk space.Read 7 Oct 2026 · encryptomatic.com
Plans and prices
1 License $79.99 a month Licenses are perpetual; maintenance/upgrades are optionally renewable at 25%. 1 license Read 20 Sep 2026 · encryptomatic.com
5 Licenses $349.95 a month Licenses are perpetual; maintenance/upgrades are optionally renewable at 25%. 5 licenses Read 20 Sep 2026 · encryptomatic.com
10 Licenses $589.90 a month Licenses are perpetual; maintenance/upgrades are optionally renewable at 25%. 10 licenses Read 20 Sep 2026 · encryptomatic.com
25 Licenses $1,249.75 a month Licenses are perpetual; maintenance/upgrades are optionally renewable at 25%. 25 licenses Read 20 Sep 2026 · encryptomatic.com
50 Licenses $2,199.50 a month Licenses are perpetual; maintenance/upgrades are optionally renewable at 25%. 50 licenses Read 20 Sep 2026 · encryptomatic.com
75 Licenses $3,149.25 a month Licenses are perpetual; maintenance/upgrades are optionally renewable at 25%. 75 licenses Read 20 Sep 2026 · encryptomatic.com
100 Licenses $3,999 a month Licenses are perpetual; maintenance/upgrades are optionally renewable at 25%. 100 licenses Read 20 Sep 2026 · encryptomatic.com
1 License $69.99, paid once Perpetual license; includes 1 year of maintenance/upgrades 1 license Read 7 Oct 2026 · encryptomatic.com
5 Licenses $349.95, paid once Perpetual licenses; includes 1 year of maintenance/upgrades 5 licenses Read 7 Oct 2026 · encryptomatic.com
10 Licenses $589.90, paid once Perpetual licenses; includes 1 year of maintenance/upgrades 10 licenses Read 7 Oct 2026 · encryptomatic.com
25 Licenses $1,249.75, paid once Perpetual licenses; includes 1 year of maintenance/upgrades 25 licenses Read 7 Oct 2026 · encryptomatic.com
50 Licenses $2,199.50, paid once Perpetual licenses; includes 1 year of maintenance/upgrades 50 licenses Read 7 Oct 2026 · encryptomatic.com
Strong points and limits
Strong points
- Uses AES-128 or AES-256 encryption.
- Recipients need only a PDF viewer and password.
- Supports multiple Outlook Desktop versions.
- Free mode allows five encrypted PDFs monthly.
Limits
- Windows-only, with specified system requirements.
- Free mode is limited to five messages monthly.
- Paid one-license option is $79.99 a month.
Who it suits
PDF Postman suits Outlook users on Windows who need to send encrypted email messages or attachments as PDFs. The maker describes it for small office or home office users and corporate professionals, including those with experienced IT departments.
Verdict
PDF Postman focuses on password-protected PDF delivery from Outlook, with encryption options for messages and attachments. Its free mode is limited to five encrypted PDF messages per month after the 15-day trial.
Where Specifiction places it
- Email Encryption Software#15 of 318.1
- File encryption tools#15 of 287.9
Alternatives to PDF PostmanAll alternatives →
c.Email Free plan 8.7 Visit 
DataMotion Secure Email Exchange 8.6 Visit 
Mailvelope From €3/mo 8.6 Visit