PDFfiller (by airSlate)

PDFfiller is less of a traditional PDF editor and more of a document workflow automation platform. It excels at creating, distributing, and managing fillable forms. If your small business relies on collecting data from clientssuch as intake forms, applications, or surveysPDFfiller is arguably the best tool on this list. It integrates deeply with other airSlate products to automate the entire document lifecycle, from creation to storage.

While it can edit PDFs, its true power lies in its ability to turn static documents into interactive, data-collecting assets.