A fast-growing SaaS future-proofed its web presence with a modular HubSpot CMS build

SuperDoc is known for engineering-grade excellence. It’s widely regarded as the best open-source, self-hosted document editor with a perfectly formatted document (docx) viewing, editing, and collaboration experience.

Their marketing lived on a single-page microsite, which limited:

• How effectively they could tell their story

• How much control did the marketing team have over changes

• How quickly they could scale inbound content and campaigns

The internal team knew the next phase of growth required a more flexible, modular, and scalable foundation. Ideally, the one that marketing could expand without waiting for engineering bandwidth.

This led to the search for a structured, future-proof migration to HubSpot CMS.

SuperDoc wasn’t just looking to “move pages.” They needed a CMS environment that could grow with them.

The core challenges were clear:

A scalable CMS that marketing could own

SuperDoc wanted to migrate its existing single-page microsite to HubSpot CMS while ensuring feature parity and creating room for future expansion.

A flexible theme foundation

They needed the CLEAN theme (or a similar structure), but not in a marketplace-managed format. A self-hosted copy was essential to allow deeper customization now and later.

A system that the marketing team could manage

The new theme had to reflect SuperDoc’s brand guidelines and offer easy self-service. Modules, spacing, colors, forms, and styling needed to be editable without depending heavily on developers.

In short, along with a migration, the aim was to attain the foundation for scalable, long-term inbound operations.

💡A useful resource: Seamless website upgrade: migrating from WordPress to HubSpot CMS

RevX partnered with SuperDoc with a simple philosophy to build it once, build it right, and build it so the marketing team never needs a developer for routine updates.

Our collaboration focused on creating a powerful, scalable HubSpot CMS foundation through strategic theme setup, modular development, and design alignment.

Custom theme setup for full control

• Downloaded the CLEAN theme and rehosted it in a development environment
• Enabled deep customization not possible with marketplace-managed versions
• Set the foundation for long-term scalability
  
  

Brand-perfect styling & visual system

• Applied SuperDoc’s brand colors, typography, and spacing
• Ensured visual coherence across templates, modules, and global elements
• Extended styling customization fields so the marketing team could make changes independently
  
  

Module enhancements built for flexibility

• Added unique IDs and CSS classes for scroll-targeting and special styling
• Customized theme-based forms with editable fields (fonts, colors, spacing)
• Styled cookie/privacy banners to match brand personality
• Added external assets like Font Awesome and essential JS libraries

Building reusable, global content blocks

• Developed a reusable “trusted by” logo carousel module
• Built a Liveblocks-style footer with columns, icons, certifications, and social links
• Configured editable header content with anchor link scroll behavior
• Built a stylized HTML module with editable fields for advanced content use cases
  
  

Page development & QA

• Created a custom landing page template aligned with their existing microsite structure
• Set up reusable modules for future pages
• Conducted full QA across browsers, devices, and responsive breakpoints
• Completed iterative review cycles with the SuperDoc team

Through this process, we built an expandable design system inside HubSpot for SuperDoc.

No CMS migration is complete without validating how the system performs in real environments. 

RevX carried out a deliberate, high-coverage testing process to ensure SuperDoc’s new HubSpot setup was flawless on launch.

💡A useful resource: HubSpot setup made easy: A 13-step setup process designed for success

Browser & device testing

The team tested layouts, modules, animations, and interactive elements across browsers and devices. This ensured universal compatibility for all users.

Responsive layout verification

Reviewed stacking, spacing, button/section behavior, and spacing consistency across mobile, tablet, and desktop.

Functional testing

RevX validated:

• Scroll-targeting behaviors
• Form styling, submissions, and error states
• Header anchor navigation
• JS libraries and Font Awesome integration
• Editing experience inside HubSpot for non-technical users
  
  

Review & feedback cycles

Structured rounds of review were conducted with the SuperDoc team, ensuring:

• Design alignment
• Copy alignment
• Module-level UX refinements
• Consistency in branding across new components

Every round tightened the system further, resulting in a polished, reliable, editor-friendly CMS that the marketing team could depend on from day one.

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Most CMS migrations fail because of the details that nobody sees, and that’s the connective tissue that determines whether marketing can actually use the system.

For SuperDoc, RevX paid special attention to the operational backbone:

• Creating modules with clean editing experiences
  
• Ensuring the theme followed HubSpot CMS best practices
  
• Decoupling layout logic from content so teams can rearrange sections freely
• Avoiding over-engineering.
• Ensuring all elements (headers, footers, icons, forms) were editable without developer help

Small decisions like these compound into long-term RevOps efficiency. And this layer of thought is what transforms a CMS into a growth engine.

SuperDoc now has a CMS setup that supports both today’s marketing needs and tomorrow’s scale.

Smooth, zero-disruption migration

Their single-page microsite was migrated smoothly into HubSpot CMS with full feature parity and no compromise to the original user experience.

Editor-friendly, modular system

RevX built:

• Custom modules
• Reusable templates
• A flexible landing page structure

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All are designed so SuperDoc’s marketing team can launch new content instantly, without engineering dependency.

A future-proof, scalable framework

The new system ensures:

• Consistency across pages
• Easy additions of new sections, styling, and content updates
• Ability to expand into multi-page architecture
• A solid base for expanding their web presence over time
  
  

To conclude, SuperDoc now has a marketing engine that’s as strong, scalable, and reliable as its core product.

With custom modules, branded styling, reusable templates, and thoughtful theme customization, the team can update content quickly and confidently, while having a long-term framework that supports their next stage of growth.