Yes, both PDF.js Express and ComPDFKit offer a Free Trial.
PDF.js Express is designed for Large Enterprises, Medium Business and Small Business.
ComPDFKit is designed for Freelancers, Medium Business and Small Business.
The starting price of PDF.js Express begins at $375/Month when Billed Yearly, while pricing details for ComPDFKit are unavailable.
Some top alternatives to PDF.js Express includes VectorViewer, PDFelement, Qualified, Workvivo, ComPDFKit, Adobe Acrobat Reader, MuPDF, Foxit Reader, DeftPDF, IFTTT, Paperjet and DocSpring.
Some top alternatives to ComPDFKit includes PDF Convert Free, ZonePDF, Qualified, Workvivo, StreamDocs, SimPDF, html2pdf.app, DeftPDF, PDF.js Express, IFTTT and HelloPDF.