Based on our record, Vectorizer.io should be more popular than PDFCrowd. It has been mentiond 2 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.
To follow on with this, I've used https://pdfcrowd.com/ too. Source: over 3 years ago
There are two different conversion sites that give a pretty much perfect result, Vector Magic and vectorizer.io, but both require a subscription or payment per use. I have not successfully convinced my employer to go for one yet. Source: over 1 year ago
I forgot to mention I have some leftover vectorizer.io credits so if you do get the original image send it to me and I'll vectorize it for you for free. Source: over 1 year ago
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.
potrace - Open source program that transforms bitmaps into vector graphics.
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
Autotracer.org - Free online image vectorizer
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request
Vector Magic - Easily convert JPG, PNG, BMP, GIF bitmap images to SVG, EPS, PDF, AI, DXF vector images with real full-color tracing, online or using the desktop app!