SnapCompress

Compress photos for email

Compress photos for email in your browser, then attach the downloaded file. Personal Gmail allows 25 MB of attachments. Microsoft documents a 20 MB email size limit for internet accounts such as Outlook.com, including the message. Yahoo Mail caps all attachments in one message at 25 MB. Photos are not uploaded.

Questions

Are my photos uploaded before I email them?

No. The photo is compressed in your browser. Download the result and attach that file in your mail app. SnapCompress does not receive the image in order to shrink it.

What is the Gmail attachment limit?

Google Help says a personal Gmail account can attach up to 25 MB in total. If the attachments are larger, Gmail removes them and adds a Google Drive link. A work or school account uses the limit set by its administrator.

What limit does Outlook use?

Microsoft’s Outlook help says internet accounts such as Outlook.com or Gmail have a 20 MB limit for the email, and that limit includes the message text as well as the attachments. The same page states a 10 MB default for Exchange business mail in the desktop app. An administrator can set a different limit.

What about Yahoo Mail?

Yahoo Help says the sum of all attachments in one message, both incoming and outgoing, must not exceed 25 MB.

Why can a photo under the limit still bounce?

Mail encodes attachments as text, which makes them roughly a third larger on the way, and the recipient’s server has its own cap. A few photos around 200 KB to 1 MB each are safer than one file sitting on the published maximum. This page starts the single-image target at 1 MB. Lower it when you are attaching several photos.

Which format should I attach?

JPEG is selected here because mail apps generally display it. WebP can be smaller, but some clients will not show it in the message. PNG is a weak choice for a photograph because it has no quality dial.

Will location data be in the file I attach?

A re-encoded download does not copy EXIF, including GPS. Keep EXIF metadata is a Pro option and applies only when you are not cropping. If compression would make the file larger and you are not converting or cropping, you get the original file back, metadata included.

Can I compress several photos before attaching them?

Yes, with Multiple Images and the quality slider. Free batches are limited to 5 images and 8 MB each. The exact KB target works on one image at a time.

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