Based on our record, Zinc Search Engine should be more popular than PDFCrowd. It has been mentiond 3 times since March 2021. 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.
Zinc: Zinc Search engine. A lightweight alternative to elasticsearch that requires minimal resources, written in Go. - Source: dev.to / about 2 years ago
You could have a look at https://github.com/prabhatsharma/zinc, which should be compatible, but way more lightweight and with an open license. Source: over 2 years ago
I have an idea but haven't drilled down on the details of how to make money. Here is the link - https://github.com/prabhatsharma/zinc. Source: over 2 years ago
To follow on with this, I've used https://pdfcrowd.com/ too. Source: about 3 years ago
Searchkit - UI components for Elasticsearch
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
Appbase.io - Search stack for building modern apps
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
You.com - You.com, the world's first open search engine platform that summarizes the web for users, with superior privacy choices, actionable results, extensible apps and personalization through preferred sources.
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.