Is it possible to have text boxes in the header of a pdf file? I'm sending a pdf file to multiple people and I want them to be able to write their names in those boxes.
PDF supports forms which allows you to add text boxes and all sorts of other form fields which can then be printed or submitted online.
You can create PDFs with forms by using Adobe Acrobat Professional or the free online tool PDFescape. The open source Scribus desktop publishing application also supports PDF forms, but I'm not sure how well it can import an existing PDF file.