Step-by-step instructions for creating PDFs from any file type, including methods for merging, compressing and password-protecting PDF documents securely.

Studying for exams often feels like trying to drink from a firehose — dense PDFs, sprawling lecture slides, and research papers piled high. What if you could turn any document into a focused set of ...

From Adobe Acrobat to free online editors and built-in tools, here’s how to merge multiple PDFs into one document.

An inherent principle of publication is that others should be able to replicate and build upon the authors' published claims. A condition of publication in a Nature Portfolio journal is that authors ...