How to save any file as a PDF

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

How to combine PDF files

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

Edit, convert, and conquer PDFs with the last editor you’ll ever buy — on sale for 30% off

TL;DR: Manage your PDFs with ease with a lifetime subscription to PDF Expert, on sale for $97.97 until Sept. 30 (reg. $139.99 ...
MUO on MSN

My e‑reader now doubles as a notebook thanks to this stylus

I currently use the Boox Note Air 4C, which is a color ePaper notebook and easily one of the best e-Ink devices I’ve tried so ...
IEEE

A Deep Learning-Based Modeling of a 270 V-to-28 V DC-DC Converter Used in More Electric Aircrafts

Abstract: This article presents a novel approach for black-box modeling of 270 V-to-28 V dc–dc step-down converters used in more electric aircrafts. These converters normally feed constant power loads ...