Compress Image to 100 KB
Passport Seva and NTA exam portals cap photo uploads at 100 KB. This tool compresses your image under 100 KB at the best quality possible. Runs locally in your
Quick start
Done in 3 steps
- 1
Upload your image
Drop your JPEG, PNG, or WebP image onto the upload area, or click to browse files. Camera capture is also supported on mobile.
- 2
Compressed to under 100 KB
The tool automatically finds the highest quality setting that keeps the file under 100 KB. No sliders, no manual settings, done in seconds.
- 3
Download your compressed image
Your compressed image downloads automatically. The file is under 100 KB and ready for any portal that requires it.
- 1
Upload your image
Drop your JPEG, PNG, or WebP image onto the upload area, or click to browse files. Camera capture is also supported on mobile.
- 2
Compressed to under 100 KB
The tool automatically finds the highest quality setting that keeps the file under 100 KB. No sliders, no manual settings, done in seconds.
- 3
Download your compressed image
Your compressed image downloads automatically. The file is under 100 KB and ready for any portal that requires it.
Requirements
Compress Image to 100 KB
A 100 KB limit applies to Passport Seva, some scholarship portals, and high-resolution identity document uploads. The original file format is preserved and quality is kept as high as possible.
- Target size
- 100 KB
- Min quality
- 45%
- Format
- Preserved
Additional requirements
- JPEG stays JPEG. PNG stays PNG. The format is not changed during compression.
- At 100 KB, most passport-size and document photos look almost identical to the uncompressed original. Quality loss is minimal.
- For Passport Seva uploads, resize your photo to the correct passport dimensions first using the Passport Photo preset, then compress only if the file is still too large.
- If the output is still above 100 KB as PNG, you will need to resize the image dimensions first before compressing.
Troubleshooting
Common issues & fixes
If your upload is rejected, one of these is usually the reason.
File still too large after compression
What you see
Even after downloading the compressed file, the portal still rejects it as too large.
How to fix it
Check that you are uploading the downloaded file and not your original. If the file is still too large, your source image may be extremely high resolution — crop it to just the subject area before re-processing.
Output looks blurry or pixelated
What you see
The downloaded file has visible JPEG artefacts or looks significantly worse than the original.
How to fix it
Start with a higher-quality source image. Screenshots and heavily compressed photos degrade further under compression. Use the original camera file if available.
Output format changed unexpectedly
What you see
You uploaded a PNG but downloaded a JPEG, and the portal only accepts PNG.
How to fix it
The "Compress to 20 KB" preset converts to JPEG when PNG cannot reach the target size. Use a different compression target, or use a smaller PNG source.
Portal does not accept the output format
What you see
Portal shows "Unsupported file type" even though the download looks correct.
How to fix it
Some portals do not accept WebP. If your original was WebP, the output preserves that format. Use the "Compress to 20 KB" target which always outputs JPEG, or convert your source to JPEG first.
Frequently asked questions
- What is the best way to compress an image to 100 KB?
- Upload your image to Presetly's Compress Image to 100KB tool. It automatically finds the highest JPEG quality that keeps the file under 100 KB — no manual quality slider needed. Common use case: Passport Seva, NTA exams, scholarship portals.
- Will my image look blurry after compressing to 100 KB?
- It depends on your original image size. A 2 MB photo compressed to 100 KB will lose some detail — inevitable at a 95% reduction. A photo already close to 100 KB looks nearly identical. The tool always maximises quality within the size limit.
- Which image formats are supported?
- JPEG, PNG, and WebP. For this 100 KB target, PNG format is preserved where possible. Only at very small targets (under 40 KB) does the tool convert PNG to JPEG to meet the size limit.
- Is this tool completely free?
- Yes. 100% free, no sign-up, no watermarks, no daily limits. The tool runs entirely in your browser using the Canvas API — nothing is uploaded to any server.
- Can I compress multiple images at once?
- Not yet — the tool processes one image at a time so each result hits 100 KB precisely. Click "Process another image" after downloading to compress the next one. Batch processing is planned for a future release.
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