Work with me

I help teams solve hard PDF problems: performance bottlenecks, accessibility and compliance issues, HTML-to-PDF quality problems, and signing workflows that need to be production-ready.

Common reasons teams reach out

• PDF generation or rendering is too slow
• PDF-UA or PDF-A requirements are blocking release
• HTML-to-PDF output is inconsistent or badly tagged
• signing and validation flows are fragile or hard to maintain
• the team wants an experienced engineer to review architecture and implementation trade-offs

Ways I can help

Architecture and problem framing

Get clarity on where the real bottleneck or design risk is before your team burns weeks in the wrong place.

Performance investigations

Profile document workflows, rendering behavior, and generation pipelines to find practical speed wins.

Compliance and accessibility guidance

Help teams move from vague requirements to concrete implementation choices around PDF-UA and PDF-A.

Hands-on implementation support

Work directly on tricky PDF features, edge cases, and code paths that need deep domain knowledge.

Reviews and training

Code reviews, technical walkthroughs, and targeted sessions to level up internal engineering teams.

Best fit

I’m typically most useful when the problem is both technically detailed and business-critical: the kind of issue where PDF behavior, standards, performance, and product quality all interact.

Let’s talk

Send a short description of the problem, your stack, and where things are getting painful.

• Email: guust[dot]ysebie[at]gmail[dot]com
• LinkedIn: Guust Ysebie
• Whatsapp: +32 49 298 34 21