but the PDF was created without the necessary administrative rights. In other words, Adobe Reader won't let you add text. What you need is a program that's a little more accommodating, PDF-wise.

If you want to watermark a PDF file, you can either insert the watermark into the PDF itself or create a file in another program with a watermark and then transform it into a PDF. For example ...

The PDF (Portable Document Format) file type is useful for a wide variety of business situations. It enables companies to create documents in which fonts, layouts and colors are preserved exactly ...

To add your signature to another spot or a subsequent PDF, click on the Sign icon and choose your saved signature. After you’ve added text and signed the PDF, save the file.

There are myriad features you can use to enhance them, like added text boxes, signatures, and doodles, and you can also always delete pages or add new ones. To delete a page from a PDF on your Mac ...

(PDF stands for Portable Document Format ... Now, whenever you want to add your signature to a document in Preview, just click on the Signature icon and click on your signature.