Printing a page to sign it and scanning it back is three steps and a printer nobody has in front of them.
Sign a PDF →Free every day without an account on some tools. Your file is deleted the moment the job finishes.
Type your name and it is drawn in a handwriting face, or photograph your real signature and upload that — PNG and JPG go straight in, and a HEIC from an iPhone or a WebP from a website is converted for you. A name written in Hindi is drawn properly rather than coming out blank. Then place it on the page where it belongs and save.
Yes — photograph it, upload it and place it where it belongs. The background of the photograph is removed so it sits on the paper rather than in a white box.
Yes, in a handwriting face, in English or Hindi.
In India an electronic signature is recognised under the Information Technology Act for most ordinary documents, and specifically excluded for a few — a will, a trust deed, a sale of immovable property. Check what the document is before relying on it.