PDFCrowd might be a bit more popular than Apache Flex. We know about 1 link to it since March 2021 and only 1 link to Apache Flex. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
What's even stranger is that there is an open source project under Apache for Flex. One that even has not only the blessing of Adobe but the support of the company. Their answer has been write an app in Flex and get in compiled to JS. No need for Flash! Several developers using it happily in the Lansing area. http://flex.apache.org/. - Source: Hacker News / over 2 years ago
To follow on with this, I've used https://pdfcrowd.com/ too. Source: about 3 years ago
Apache Cordova - Platform for building native mobile applications using HTML, CSS and JavaScript
DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more
jQuery Mobile - jQuery Mobile
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
PhoneGap - Easily create apps using the web technologies you know and love: HTML, CSS, and JavaScript.
pdflayer - Free, powerful HTML to PDF API supporting both URL and raw HTML conversion. Unlimited document size, lightning-fast and compatible PHP, Python, Ruby, etc.