Modern smartphones take photos of 10 to 50 megapixels — beautiful for printing, but far too large for email. Most email providers accept attachments up to 25 MB, but a 12 MP photo can already be 8-12 MB.
How large should a photo be for email?
For email, a width of 1200 to 2000 pixels is more than enough. That gives a sharp image of 300-800 KB — perfectly fine as an attachment. On a screen you will see no difference from the original.
If you are just sending the photo for information (e.g. "here is how the situation looks"), even 800px wide is sufficient.
Step by step: resize a photo with PixRust
1. Go to the resize image tool.
2. Drag your photo here.
3. Type 1600 in the width field (or smaller if you prefer). The height adjusts automatically when "Keep ratio" is checked.
4. Click Download.
The downloaded photo is much smaller and suitable as an email attachment.
Tip: also compress the quality
Want to reduce the file size even further? Use the compress tool afterwards and set the quality to 80%. You lose almost no visible quality, but the file size can drop by another 50%.
Many photos at once?
Use the bulk resize tool to resize 100 photos at once. You get them back as a ZIP.
Frequently asked questions
Should I preserve the aspect ratio?
Yes, always. If you only adjust the width and let the height scale automatically, the photo keeps its normal appearance. If you change width and height separately, the image can distort.
Does the quality get worse by resizing?
No, when shrinking you only discard surplus pixels. That is not visible. When enlarging (more pixels than the original) the result becomes blurrier — that is unavoidable.
Can I also resize photos directly from my phone?
Yes, PixRust works on any modern browser including Safari and Chrome on iOS and Android.