Also question is, what is the image size for LinkedIn?
400 x 400 pixels
One may also ask, how can I resize a picture without cropping it? Resize an image without croppingIf cropping isn't what you're looking for, and you want the full image to be smaller or larger, head to Resize in the Edits tab. Use the checkbox to switch between pixels and percentages and play with your image's proportions.
Herein, why can't I upload a photo to LinkedIn?
When your photo won't upload to your profile, try cropping it so that it's less rectangular and more square in shape. If it still won't upload, try again using a different browser. If that doesn't work, follow the instructions below to compress and save your photo as a PNG file and then upload it to your profile.
What is an appropriate LinkedIn photo?
The ideal size for your LinkedIn profile picture is 400 x 400 pixels. This may also happen if you try to take a picture of a picture (like taking a pic of the photo on your ID badge) so it's best to take a fresh one instead.