Reduce photo weight before you attach it to an email.
Exact size image compressor
Compress images for Gmail
Make photos lighter before adding them to Gmail messages and replies.
Compress image to 1 MB →Compress up to 10 images before sending a collection.
Use a practical 1 MB starting target, then adjust as needed.
How to compress an image to 1 MB
Open the 1 MB compressor, upload your photos, and download the smaller files before attaching them in Gmail.
- Open the TargetKB compressor with the 1 MB limit already selected.
- Upload one image or up to 10 images at once.
- Download the optimized image and check its dimensions and file size before uploading.
Why use an exact-size compressor?
Many upload forms reject files for being only slightly too large. TargetKB works backwards from your requested limit, automatically balancing image dimensions and JPEG quality instead of asking you to guess a quality percentage.
Check byte limits, output quality and format limitations if your upload is still rejected.
Frequently asked questions
Does this send images to Gmail?
No. TargetKB only prepares the smaller file; you attach it to Gmail yourself.
Can I make files even smaller?
Yes. Choose any custom KB or MB limit on the main tool.