Doesn’t lose quality if bigger or smaller (because it’s made with math, not pixels)
JPG
used for photography
compresses info into smaller file sizes without degrading image quality–at least to the naked eye.
PNG
Best quality but big file size
PDF
pros
best format to print - scaling don’t decay the quality
preserve formatting in different devices
Platform independence
cons
meant just to read: they cannot be easily edited or modified
secuirty concerns
can be used to deliver malicious code or malware through embedded scripts or attachments
file size expecially with images
Accessibility concerns
ensuring compatibility with screen readers and other assistive technologies may require additional steps and considerations during the document creation process.
Conversion limitations
If you need to convert a PDF back to an editable format, such as a Word document, the conversion process may not always be perfect, and some formatting or content may be lost or altered.
not the best for image quality
Video
MOV vs MP4
MOV generally has better quality due to the fact that they have not been compressed as heavily. Purely judging based on file quality, MOV is often better, but not always.
MP4 is more widely used, and it is also usually more efficient when it comes to file size.
WMV - Windows Media Video
WMV is great because you can use it for many purposes because of its relatively small size. However, this file doesn’t measure up to other video formats to retain image quality after compression which may corrupt.
AVI
It is compatible with different file formats and several web browsers. There’s a guarantee of high-quality videos from this file format. Microsoft developed this video format, and it can hold both audio and video data.