How to Convert JPG to PDF in Windows 10 Offline Here’s how you can convert JPG to PDF in Windows 10 online and offline. In case you’re wondering how to convert a JPG file to PDF in Windows 10 for free, you’ve landed at the right place because today you’re going to learn how to do it online as well as offline. But we often might feel the need to convert these files to other formats to be sent as attachments or form filler. The images and screenshots that we download from the internet are usually saved in the JPG or PNG format.