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How to Reduce Photo Size for Email Attachments

Updated May 2026 · 3 min read

Most email providers cap attachments at 10–25 MB. A single photo from a modern smartphone can be 6–12 MB — so attaching two photos already risks a rejection. Here's how to fix it in under 30 seconds.

What size should a photo be for email?

For most emails, under 1 MB per photo is ideal. Anything over 5 MB risks the email bouncing or the recipient's mailbox rejecting it. At 85% quality and 1600px wide, a compressed photo is indistinguishable from the original on any screen — but the file shrinks from 8 MB to under 600 KB.

Reduce your photo size for email — instantly, privately

Open PicLight and compress now →

Steps to compress a photo for email

  1. Open PicLight and select the Email preset.
  2. Drop your photo or click to browse. It compresses instantly.
  3. Download and attach the compressed file to your email.

Gmail tip: Gmail rejects attachments over 25 MB. For photos above that, use Google Drive's "Insert from Drive" option instead.

Does compressing a photo affect quality?

At 80–85% quality, compression artifacts are invisible to the human eye at normal screen sizes. The technical difference exists in the pixel data, but you would need to zoom in to 200% on a calibrated monitor to notice it. For emails, receipts, travel photos, or family pictures, 82% quality is perfect.