Home › Image Resizer to KB › Increase Image Size to 1MB
Increase Image Size to 1MB
Preset to 1024 KB (1MB). Type another KB value any time.
Advanced (optional): exact pixels or minimum KB
Many forms ask for pixels as well as KB. Leave empty if yours does not. Examples are common sizes only – always use the size your form states.
✅ Done! Your images are ready
About the 1MB image
When a system expects images of at least 1MB, small or compressed files get rejected. This page pads your JPG to exactly 1024KB, which is 1MB.
How to increase an image to exactly 1MB
- Select your image. A JPG keeps its original pixels; other formats are converted to JPG first.
- Check the size. The box is already set to 1024 and Increase is selected. Change the number if needed.
- Press the green button and download a file that is exactly 1 MB.
Increase mode keeps your picture and adds invisible padding so the file size matches exactly.
Where you need a 1MB image
1MB minimum rules
Uploads that must not be small previews.
Exact 1MB requests
Testing or dev tasks that need a file of precise size.
Storage and upload testing
Check how a site handles a 1MB file.
Re-uploads after compression
Restore the size count after over-compressing.
What to expect at 1MB
You get a 1MB file that looks identical to the source. The extra size is invisible padding, not new detail.
1MB image FAQ
Why does the box say 1024?
Because the tool counts in KB and 1MB equals 1024KB.
Can I use this to test an upload form?
Yes. It creates a valid image of an exact size, which is handy for testing upload limits.
Does a bigger file mean better quality?
Not by itself. Size and quality are different things; padding only changes size.
Is my photo uploaded when I increase it to 1 MB?
No. Everything happens inside your browser, so your picture never leaves your device. No signup, no watermark.
Other sizes and tools
Compress image to a smaller size
Increase image size to a larger size
Signature, passport photo, formats and more
Need the opposite? Try Compress image to 1MB.
Prefer a percentage instead of a KB size? Use the quality-based image compressor, or read our image guides.