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

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

To mark World Rhino Day on Sept. 22, we look back at some of Mongabay’s rhino reporting from this year. All five rhino ...

On World Rhino Day, the Cleveland Metroparks Zoo announced the birth of a critically endangered Eastern black rhino calf.

As conservationists mark World Rhino Day on Monday, South Africa remains in a constant and costly battle against poaching nearly 30 years after black rhinos were declared critically endangered, and ...

Conservationists in South Africa are marking World Rhino Day on Monday under the shadow of poaching. The country is home to ...