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.

Some might suggest you download an app to convert a picture to a PDF on the iPhone, but the truth is you can do it for free without any apps.

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.

To convert a JPG file to a PDF file, simply change the file format on your computer's default photo-viewing app.

Whether you want your Microsoft Word file as an image or different document type, we’ve got you covered. We’ll show you how to convert Word into JPEG or PDF.