Side by side
Gpg4win vs PDF Postman
Both stand on email encryption software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan Windows
Choose Gpg4win if you use Windows and want file or email encryption with Outlook integration and administrator access controls. Its documentation, source code and community provide additional project resources. Look elsewhere if you need a platform other than Windows.
Visit Gpg4win Free plan Windows
PDF Postman focuses on turning Outlook messages and attachments into password-protected PDFs, with several ways to handle attachments. Check the listed Windows and Outlook requirements and the post-trial message limit before choosing a plan.
Visit PDF PostmanThe facts
| Gpg4win | PDF Postman | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Windows | Windows |
| Lowest paid plan | Free or on request | 1 License: $69.99 per license, paid once |
| Plans published | 1 | 8 |
| Maker | Not published | PDF Postman |
| Website | gpg4win.org | encryptomatic.com |
| On email encryption software | #10 of 31 | #14 of 31 |
Gpg4win: what it does well
- Encrypts files and email on Windows.
- Supports attachment delivery and recipient identity verification.
- Integrates with Outlook and lists administrator access controls.
- Download area includes an integrity check.
- Offers a Compendium, support documentation, wiki and community.
What to know first
- Available for Windows.
- The listed plan is free, with no paid pricing stated.
PDF Postman: what it does well
- Encrypts with AES-128 or AES-256.
- Recipients need only a PDF viewer and password.
- Converts HTML, rich-text, and text messages.
- Supports multiple attachment protection workflows.
- Offers MSI deployment and centralized password storage.
What to know first
- Windows and listed Outlook versions required.
- Free mode allows five encrypted PDF messages monthly.
- Trial lasts 15 days.
- System requirements include 4 GB RAM and 2 GB disk space.
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