But a PDF isn't the most compact file type or easily shareable on social media — unlike JPG, PNG, or TIFF file formats.

For example, if you want to share a picture that contains only text, then it is good to go with PNG format. If you want to share a portrait, the preferred format is JPG. Now if you convert a PNG ...

and other images with FileZigZag or another image converter. This article describes what PNG files are and how to view one, ...