An ebook is a book publication made available in digital form that allows you to read it on an electronic device like a computer or handheld device. eBooks are popular in two file formats - ePUB and Mobi. Mobi was Amazon's proprietary ebook file format for their eBook reader - Kindle. As of 2022, Amazon no more supports the .mobi file format and is now using the ePUB format.
PDF files are usually created tamper-proof and are highly portable. For this reason, they are not easily editable. They need much more sophisticated software to make them editable. A better workaround is to convert the PDF to another format like Word and edit them using software like Microsoft Word or Google docs.
The introduction of the PDF revolutionized how documents come into a paperless format. It opened possibilities as people can now save forms, slides, and web pages into an easy-to-view file format that you can open with readers and web browsers. It also simplifies how to have them printed and reproduced.
The converting of office documents or PDFs to image is often done by taking screenshots of pages in the document. Most often end up using a snapshot tool in a PDF reader to get the image of selected pages. Then you have to paste the copied image from the clipboard to an image editing tool. If you have to copy images from several pages, it can be time-consuming and tiring.