Why emails reject photos
Many email services limit attachments to about 25MB in total, and some workplaces allow far less. A handful of phone photos can easily pass that.
Option 1: compress the photos
Reduce each photo to about 1MB or 500KB with the 1MB or 500KB tool. They still look good on any screen.
Option 2: combine into one PDF
Put several pictures into one file using the image to PDF tool. Choose the "Small file" quality for the lightest result.
Option 3: use a share link
For full-quality originals, upload them to a cloud drive and send the link instead of an attachment.
Tip
Send a test message to yourself first and confirm the pictures open correctly on a phone.
Email attachment limits at a glance
| Service | Typical limit |
|---|---|
| Gmail | 25 MB total per email (larger files become Google Drive links) |
| Outlook / Hotmail | 20 MB per email |
| Yahoo Mail | 25 MB per email |
| iCloud Mail | 20 MB per email (Mail Drop for larger) |
Why a few photos can fail
Phone photos are often 3 to 8 MB each, and email adds about one third on top when it encodes attachments. Five photos of 5 MB can therefore count as more than 30 MB and bounce. Always budget for the encoded size, not the file size you see.
Step by step: shrink first, then send
Resize each photo to about 1600 pixels on the long side with the resize tool, then use the 500KB compressor or 200KB compressor. Most photos stay sharp enough for screens at this size.
When to send a link instead
If the person needs the full-resolution originals for printing, send a cloud link (Google Drive, iCloud, OneDrive) instead of attaching files. For viewing on a phone or laptop, small files are better and open faster.
Several photos in one file
Combine them into a single document with image to PDF after compressing, so the receiver gets one tidy file in the right order.
iPhone users
iPhone photos may be HEIC, which some recipients cannot open. Convert with the HEIC to JPG tool before sending.
Questions
Why does my email say the attachment is too large?
The combined size of all attachments, plus about 33 percent encoding overhead, is above the limit of your mail service. Reduce the photo sizes or send a link.
How small can I make a photo for email without it looking bad?
For viewing on screen, around 1600 pixels wide and 300 to 500 KB looks clean. For printing, keep the original and share it by link.
Does compressing a photo reduce its quality?
A little. The tool finds the best quality that fits your size limit, so a small drop is normal. Keep the original for later.
Is it safe to use an online tool for private photos?
These tools run inside your browser and do not upload files, so the photos stay on your device.