You can also use the view” button to customize the default font and line-height. In this case, the font size is auto-set to a maximum value. In the same folder where the PDF file is, choose Tools > Edit PDF and in the secondary toolbar, open the add Header & Footer” dialog by choosing tools>Edit“ and selecting add Header & Footer” from the menu. How to Add Header and Footer to PDF Files using the Text Editor To add headers or footers to an existing PDF file, you should have it opened and printed locally. The preferred way to open the PDF file using MS Word is to save it on a disk to a file-type compatible with Word. Choose the file“→ Save As...“ button, select the PDF Text Document→ PDF→File Type→ Document or PDF Text Document→ PDF→File Type→ Text Document and then choose the File button on the menu bar. In the Save As dialog box, choose the File type to create a text document. In the PDF file dialog box, choose the open With option, choose the desired application that is able to open and edit PDF files. In the open file dialog box, browse for the file and choose open. When you copy an existing document to a new location, you can choose to open it in Word by choosing open with in the file dialog box. Text Editors If you want to create text-based editing features for your PDF, you will almost always choose a text editor that support PDF files. Here are some popular choices: Marvin (Unix): Download the latest version of Marvin (Unix). Marvin uses Worded, which is an interface for your Office files. Marvin does not have many features for processing text. Inkwell (Windows): Download the latest version of Inkwell (Windows). The basic functions for formatting text are not supported, but Inkwell is well-known in the market for its ability to edit images and HTML documents. (See also: Best PDF Editing Software for Mac) Inkscape (Windows and Mac): Download the latest stable version of Inkscape (Windows). Inkscape uses the same technology as Worded when processing text files. Notepad++: Download Notepad++.