TouchPDF is a browser-based application which allows user to edit/split/concatenate PDF files without having Acrobat Professional/Reader installed.
User uploads PDF file, clicks any place of page of interest to start 'editing',users can add static text or even generate PDF form fields by using specific syntax; After previewing PDF page,user can export desired PDF file. Also, TouchPDF allows user to concatenate/merge PDF files by simply drag&drop.
There are no any annoying watermark/logo for the exported PDF file, no registration needed.
Some new features are still under active development,these features include but not limited to:
OK, so you want to stamp your document. Maybe you need to give reviewers some advice about the document's status or sensitivity. This tip from author Ted Padova demonstrates how to add stamps with the Stamp Tool along with related comments.