There are many free and paid tools to convert to different file formats including PTF. Here is a list of free tools for converting PDF into PTF format PDFelement Nuance Power PDF Converter. PDF Converter Pro. Foxit PhantomPDF Standard. Adobe Acrobat Standard DC. Nitro Pro. Remember that you may need to use a paid version if you want to get full-featured service from any tool. Some of them even offer a free trial for a particular time so you can take advantage of it. Good luck! Footnote The Top 6 Free PDF Converter in 22 s