Okular vs Postfix

Okular

Description: Okular is a versatile document viewer software for KDE. It supports viewing PDFs, EPUBs, ODT, and other document formats. Okular allows annotating, highlighting, commenting on documents as well as filling forms.

Type: software

Pricing: Free

Postfix

Description: Postfix is a popular open source Mail Transfer Agent (MTA) that routes and delivers email. It is a fast, easy to administer, and secure alternative to Sendmail. Postfix handles basic email routing and delivery well.

Type: software

Pricing: Open Source

Okular Features

• Supports viewing PDF, PostScript, DjVu, CHM, XPS, ePub and other formats
• Allows annotating, highlighting and adding comments to PDFs
• Has different view modes like single page, facing, overview grid
• Supports tabs for opening multiple documents
• Has presentation mode for slideshows
• Can fill interactive PDF forms
• Allows saving filled forms as PDF or text
• Has search functionality to find text in documents
• Can encrypt PDF files
• Has document information and metadata viewer
• Supports table of contents navigation
• Has different reflow modes for reading ePubs
• Can print documents to system printer

Postfix Features

• Mail Transfer Agent (MTA) for routing and delivering email
• High performance and efficient email delivery
• Easy administration with main configuration file postfix.cf
• Built-in security features like SMTP authentication and TLS encryption
• Compatible with Sendmail and easy migration from Sendmail
• Modular design allowing third-party plugins and add-ons
• Support for virtual domains, aliases, forwarding, etc
• Content filtering with third-party products
• Backward compatible with Sendmail configuration files

Okular

• Free

Postfix

• Open Source