Yes, both Paperplane and PDF API offer a Free Trial.
Paperplane is designed for Individuals, Medium Business and Small Business.
PDF API is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Paperplane Starts at $25/Month whereas for PDF API Starts at $67/Month when Billed Yearly.
Some top alternatives to Paperplane includes pdflayer API, PDFmyURL, PDF4me, BuildVu, Qualified, Workvivo, StreamDocs, PDF API, PlutoPDF, SimPDF, html2pdf.app and HelloPDF.
Some top alternatives to PDF API includes PDFTables, SimplyDocs, PDFtoExcel.com, DocuSutra, PDF.to, Qualified, Workvivo, StreamDocs, GenForge, SimPDF and IFTTT.