Large photos make emails slow and can bounce. Shrink them before you hit send.
or choose a file from your device — processed locally, nothing is uploaded
We try WebP and JPG (or WebP/PNG if your image has transparency), search for the best quality that fits, and only shrink dimensions if quality alone can't get there.
Gmail limits attachments to about 25MB in total and many other providers allow around 20MB. A handful of phone photos can pass that quickly, and the receiver may also have a smaller limit.
Compress each photo to about 1MB for email: it still looks clear on screen and in print at normal sizes. For documents, use 500KB to keep text readable.
Email providers cap the total size of a message, commonly somewhere around 20 to 25MB, and attaching a file makes it roughly a third bigger when it is encoded for sending. Ten full-size phone photos can therefore be refused. Compressing each photo first keeps the whole message under the limit.