BoldSign vs Lumin

BoldSign is an electronic signature app and API made by Syncfusion, the North Carolina software company best known for its UI component libraries. It targets businesses that find DocuSign too expensive and want transparent pricing, a usable free plan and a developer-friendly API. Its core job is preparing documents, sending them for signature and tracking them to completion with a full audit trail.

The web app offers templates, signer authentication, automated reminders, in-person signing, team management and AI-powered field detection. Business adds unlimited envelopes, SSO, custom roles, scheduled send, a custom email sending domain and HIPAA support. Add-ons cover bulk send, bulk links, SMS and WhatsApp delivery, ID verification, knowledge-based authentication and qualified electronic signatures. The free Essential plan allows 25 envelopes a month, and a separate Enterprise API plan with a free sandbox handles embedded signing and webhooks.

BoldSign fits small and mid-sized teams that send a steady volume of contracts and want unlimited envelopes for a flat per-user price. It has fewer native integrations and less brand recognition than DocuSign, and several advanced options are paid add-ons. DocuSign is safer for complex enterprise routing, Dropbox Sign has a polished API with Dropbox ties, and signNow is a similar value option backed by airSlate.

A buying tip: yearly billing cuts Growth from $15 to $5 per user and Business from $25 to $15, and Business is the plan that removes envelope caps.

Lumin is a cloud PDF editor and e-signature tool from Christchurch, New Zealand. Max Ferguson, who studied civil engineering at the University of Canterbury, started it in 2014 in his university flat and grew it largely through the Google Drive app marketplace into a product the company says is used by tens of millions of people. Its core job is opening, editing, annotating and signing PDFs straight from cloud storage without installing Acrobat.

Lumin edits PDF text, annotates, redacts, merges, splits, compresses and converts PDFs to and from Word, Excel, PowerPoint and images, with OCR for scans. Lumin Sign adds e-signatures, verified signing with ID checks and an eSign API. Lumin AI summarizes documents, answers questions about a PDF and generates agreements such as NDAs and leases. It runs on the web, Mac, Windows, iOS and Android. Plans move from a free tier with three documents a month to Starter, then team plans (Pro and Business) priced per workspace rather than per seat.

Lumin fits Google Workspace teams and small businesses that edit and sign PDFs occasionally and want flat team pricing. Adobe Acrobat remains stronger for print production, accessibility and advanced forms, Smallpdf is simpler for quick conversions, and Foxit is a cheaper desktop-first Acrobat alternative. Heavy e-signature senders may prefer Dropbox Sign or DocuSign.

Buying tip: Pro and Business are priced per team, so adding colleagues does not raise the bill, but documents are pooled at 200 per month. Every paid plan has a 7-day free trial.