It's easy to convert images into PDF files -- whether on Windows, Mac, or directly on your mobile phone. We'll show you how it works.

Windows allows you to convert any image file with JPG, JPEG, PNG format to PDF without installing any third-party software via Windows Photos App.

PDFescape PDFescape has been around for a long time and has a somewhat dated look, but it's obvious how to upload PDF files and then use the tools to add text, images, and form fields. PDFescape ...

2. In the Preview menu, click File, then select Export as PDF… Quick tip: You can also convert JPG files to HEIC, JPEG-2000, OpenEXR, PNG, or TIFF in Preview.

In the Preview app, for example, it's possible to create a single multi-page PDF document out of several separate image files.

Pick Save as PDF to choose a filename and destination, and you can even add password protection to the document if you want to. There's PDF functionality built right into Finder as well.

It's not immediately obvious, but when viewing PDF documents in the Files app, there are hidden tools that enable you to rotate pages, add blank pages, insert images, delete pages, and even scan ...

Outlook 2013 supports the inclusion of JPG, GIF, PNG and BMP image files directly in a signature. To add a PDF image, you must include it as a Web link.