Why email attachments get rejected
Many providers cap total attachment size per message — often somewhere between 10 and 25 MB — and a handful of full-resolution camera photos can blow past that limit before you notice.
Email attachment size
Compress an image for email
Most email providers cap attachment sizes well below what a modern phone camera produces. This page shows how to bring a photo down to a sendable size without resizing it beyond recognition.
Email attachment size
Get your photos under the limit
How to shrink a photo for email
Add your photos, bring the quality down toward 70-80, check the new file size shown next to each image, and download — then attach the smaller files to your message as usual.
How small does a photo need to be for email?
There is no single universal limit, but staying under a few megabytes per photo keeps you safely inside most providers caps, even when attaching several images to one message.
FAQ
Compress image for email FAQ
How much smaller can I make my image without it looking worse?
Quality 70-80 typically removes a large share of a photo size while still looking sharp in an email client preview pane, which rarely displays images at full resolution anyway.
Can I compress multiple images at once?
Yes — if you are attaching several photos to the same email, compress them together with one setting and download them as a batch, then attach them all at once.
Does compressing an image change its dimensions?
No, only the encoding changes. If your email client still complains about size after compressing, the photo pixel dimensions may also need to come down — use Resize for that.
Is there a limit to how many images I can compress for free?
No. The tool runs locally with no account, so you can compress as many photos as you need before attaching them to your email.