How to Change the Font Size in a PDF Form Field. Portable Document Format, or PDF, documents allow users with different operating systems, fonts and programs to view a file.

When you're presented with a PDF form, the options for adjusting the size and style of the text are often limited. If you want to change the font in Adobe Reader, you might not find the solution ...

Mozilla's latest version of Firefox conveniently includes a built-in PDF viewer. If you prefer your own PDF viewer, here's how to change it.

You can reduce PDF size on a Mac with the Preview app or a third-party compressor. Reducing PDF file size on your Mac computer can help save storage space. Third-party options may cost money ...