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

Not sure what an AI file is or how to open one? We explain why designers use this format, where it comes from, and the best ways to convert it to other formats.

Adobe's AI Assistant in Acrobat and Reader can answer questions about a PDF and even help you generate content based on the information in the file. Our team tests, rates, and reviews more than 1,500 ...

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