If you do not have Adobe Acrobat, PDFgear is an alternative free PDF reader and editor. It works with Windows, macOS, iOS, and Android and web browsers. It will let you edit, convert, annotate, organize, and sign PDF documents.
Here are some of the things you can do with PDFgear:
Edit: text, images, links, and fields—similar to editing in Word
Annotate and mark: highlight, underline, strikethrough, add sticky notes, comments, stamps, and shapes
Password protect: you can add a password to a PDF
Convert: you can convert PDFs to and from formats like Word, Excel, etc.
OCR: you can extract selected text
Manage forms: you can fill out forms, make new forms, and add electronic signatures
Organize pages: you can merge, split, compress, crop, rotate, and rearrange pages

