Most email providers (Gmail, Outlook) have a strict 25MB limit for attachments. A single raw photo from a modern camera can be 30MB+.
Why are my photos so big?
Cameras capture millions of pixels per inch. This is great for printing a billboard, but unnecessary for a 13-inch laptop screen. You are literally sending data that the recipient can't see.
Strategies to Shrink
1. Convert to JPG or WebP
If you are sending a PNG or TIFF, simply converting it to a JPG can reduce the size by 90% instantly.
2. Lower the Quality Setting
A JPG saved at 100% quality is huge. A JPG saved at 80% quality looks identical to the human eye but is half the size.
3. Resize Dimensions
Does your accountant need a 6000x4000 pixel scan of your receipt? Probably not. Resizing it to 1920x1080 is perfectly legible and much smaller.