If you want to edit PDf files there are several ways to do it easily. There are a number of online and offline PDF editors available. With a PDF editor pages can be rotated, cropped, or deleted, and page sizes can be adjusted easily. Using a PDf editor you can add, change or remove passwords on your PDF files.
Small PDF
(https://smallpdf.com/edit-pdf)
The online small PDF editor allows you to quickly add text and fill out PDF forms. The interface was designed to make it easy for anyone to edit documents. To edit PDF file just drag and drop PDF files, or insert PDF files from Google Drive and Dropbox into the upload box.
PDFescape
(https://www.pdfescape.com/)
PDFescape helps you to change the existing text and images in your PDF, change fonts or colors, or highlight, underline, and cross out text. You can use annotation and markup tools include free text and freehand drawing tools, shapes, sticky notes. You can easily merge PDFs, crop, rotate, delete and extract pages, add comments for collaboration. Create PDFs from printable files, scan to PDF, or create PDFs from images and can convert PDFs to Word, Excel, HTML, or image formats. A desktop version of the software is available to edit PDF in Windows.
SodaPDF
(https://www.sodapdf.com/pdf-editor/)
You can edit a PDF file by uploading it from your computer, or from a cloud storage service such as Google Drive or Dropbox. You can format page layout, margins, background, and page size. You can use the extract tool to extract pages from your active document or the Split tool to turn specific pages into independent documents. Insert text anywhere in your PDF and select your desired font style from a long list of choices. You can also choose the font attribute (i.e., bold, italic, underline, etc.), as well as the font size. Add or create images and use the Ruler and Grid tools to align and adjust objects in your PDF file.
PDF Buddy
(https://www.pdfbuddy.com/)
You can use PDF Buddy to edit and sign PDF files online. You can fill out forms, add signatures, white out and highlight PDFs. You can add text, signatures, and images, highlight or whiteout content, and merge pdf files together or split them apart.