1, AdobeAcrobat:Adobe's PDF editing and reading software provides rich functions, including converting, editing and merging PDF files.

2.NitroPro: a powerful PDF editing and conversion software, which supports the conversion of Office files into PDF and provides rich editing and annotation functions.

3.PDFelement: an all-powerful tool for editing and converting PDF, which can convert Office files into high-quality PDF files and provide editing, annotation and form filling functions.