Files & Formats
Renaming a File Extension Is Not the Same as Converting a File
Changing .png to .jpg does not convert the image inside. Learn how extensions, file contents and web media types relate to one another.
Everyday technology, a little clearer
Files & Formats
Understand file choices through the work you want to do.
Files & Formats
Pixels, PPI and Print Size: Why One Photo Can Have Three Different Numbers
Understand pixel dimensions and print density with a simple example, and learn why changing a PPI label does not create extra image detail.
Files & Formats
JPEG, PNG or WebP? Start with what the picture needs to do
A smaller image file is useful only if it keeps the details and features you need. Compare exports at the size people will actually see.