SignDex — HTML Email Signature & Brand Asset Generator logo

SignDex — HTML Email Signature & Brand Asset Generator

May 2026

SoftwareBusiness appB2B

Dibodev's internal tool that generates clickable HTML email signatures compatible with Gmail, Outlook, and Apple Mail—along with ready-to-deliver flyers, banners, business cards, and loyalty cards—based on a single brand profile.

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Screenshot of SignDex — HTML Email Signature & Brand Asset Generator

Project description

Context

SignDex is Dibodev’s internal production tool. It stores a brand profile per client (contact details, colors, logo, photos) and generates communication assets from templates: email signatures, flyers, social media banners, business cards, and loyalty cards.

Initially used for freelance signature orders, it later expanded to multi-office enterprises.

Problem

A good email signature seems simple. In practice:

  • HTML must render correctly across Gmail, Outlook, and Apple Mail, each with their own limitations
  • Image-only signatures aren’t clickable (phone, website, social links)
  • Variants, formats, and team members multiply the workload
  • Every hire, move, or office relocation requires full rework.

Solution

SignDex starts with a single brand profile. HTML templates pull client data and selected options (inverted colors, displayed visuals, portrait/logo, masked address) with live previews. A headless browser generates image versions, and the tool converts signatures to Apple Mail format.

Delivery is one-click: a ZIP archive with HTML, images, Apple Mail file, in-context previews in a mock email, and installation guides per provider.

For multi-site companies, SignDex manages organizations (offices and employees) and generates team-wide signatures at once. A white-label client portal also lets clients manage their own collaborators.

Key features

  • Brand profile: contact details, social links, colors, logo, and photos
  • 8 clickable HTML signature templates with live previews
  • Variants: color schemes, visuals, toggled elements
  • ZIP export: HTML, PNG, JPG, Apple Mail format, and installation guides
  • A4 flyers, LinkedIn/YouTube/X/Facebook banners, business cards, and front/back loyalty cards ready to print
  • Team-wide signatures in one click
  • White-label client portal
  • Windows desktop app with delivery history tracking.

Results

SignDex delivers signature packs to freelancers and enterprises alike, including a global law firm’s multi-office team signatures.

One tool, one brand profile, and all assets stay aligned—streamlining delivery and simplifying updates.

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Blog

Further reading

Articles on the same subject: what the trade needs, the software on the market and what a custom tool costs.

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