How to edit PDF files?

 There are a few ways to edit a PDF, depending on the type of changes you want to make. Here are a few options:

Adobe Acrobat: 

Adobe Acrobat is the industry standard for editing PDFs, and it offers a wide range of tools for editing text, images, and other elements in a PDF. You can use it to add text, highlight text, add images and shapes, and more. However, it is a paid software and may be bit costly

PDFill PDF Editor: 

PDFill PDF Editor is a free program that allows you to edit text and images in a PDF. It also includes tools for merging and splitting PDFs, adding watermarks, and more. However it is not that much advanced as adobe acrobat.

Online PDF editors: 

There are also several online PDF editors available. These tools allow you to edit a PDF in your browser without having to install any software. Some popular online PDF editors include SmallPDF, PDFescape, and PDF-XChange Editor.

PDF editing using word processor: 

if your pdf is mostly text and simple formatting, you can open pdf using a word processor like Microsoft word, google docs and make changes in it and then save it again as pdf.

if you have the original source like a word document or any other format from which pdf is created, you can make changes in that document and then export it as pdf again.

No matter which method you choose, always make sure to keep a backup of the original PDF in case you need to revert any changes.