I think Stirling PDF is a great product, but there meant for more Enterprise level users. LuxPDF is meant for very quick file conversions or modifications and is geared towards freelancers, students, small business etc.
I think the core audience for Stirling PDF is a lot different from ours. Stirling PDF looks like there built for enterprise users and big business. We built LuxPDF to be more for students, small business owners, freelancers, etc. To be honest we saw our site as an alternative to FreeConvert & PDFCandy, not for Stirling PDF.
Well done, hopefully gains traction. The alternative websites you talk about are an absolute nightmare to navigate only to find a suprise login or subscription.
No it's a very valid question, yes we did use Kiro IDE running on Claude 4 for some of the more complicated tools like Sort Pages (getting the UI, image preview etc) and some other tools. Developing this PDF WebApp was a lot more complicated than we thought so we had to resort to vibe coding for some functionality. We used Claude mostly for the tools and the "initial generation"/layout of the site.