Compress Image to 100 KB

To compress an image to 100 KB, add one or more photos and tap Compress to under 100 KB. Each becomes a JPG under 100,000 bytes at the best quality that fits — usually with no visible change for photos and scanned documents.

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JPG, PNG or WebP. Batch up to 30 at once.

Key facts

Compress Image to 100 KB is a Documently preset for roomier photo and document-image uploads. Examples include photographed Aadhaar or PAN cards, profile photos for job portals, and photo fields with higher caps: NEET UG 2026 and JEE Main 2027 both accept photos of 10–200 KB, according to the NTA information bulletins. The preset saves a JPG under 100,000 bytes, which is below 100 KB in both counting systems, since 100 × 1,024 = 102,400 bytes. The compressor chooses the highest JPEG quality that fits and shrinks the dimensions only when needed, so a photographed A4 page usually keeps legible text. Up to 30 JPG, PNG or WebP images can be compressed in one batch, each to its own file. Everything runs on the device, with no upload. For a multi-page document, JPG to PDF followed by Compress PDF suits forms asking for a PDF. Crop away the background, then tap Compress to under 100 KB.

100 KB is a roomy target. It suits photos on forms that allow larger files, photographed documents such as an ID card or certificate saved as an image, and pictures you want to send quickly on WhatsApp or email without losing detail. This page is preset to 100 KB, handles up to 30 images at once, and keeps everything on your device.

When to use 100 KB

Photographed documents uploaded as images: Aadhaar, PAN, a caste certificate or a marksheet photo.
Photo fields with higher caps — for example NEET UG 2026 and JEE Main 2027 accept photos of 10–200 KB.
Profile photos for job portals and college ERP systems.
Sharing clear pictures over WhatsApp or email on slow mobile data.

Will a document photo stay readable at 100 KB?

Usually, yes. A phone photo of an A4 page compressed to 100 KB keeps printed text legible at normal zoom, because the tool picks the highest JPEG quality that fits instead of a fixed low setting. It shrinks the dimensions only when quality reduction alone isn't enough.

For multi-page documents, it's better to turn the images into one PDF with JPG to PDF, then compress the PDF. Forms that ask for a document usually want a PDF anyway.

If text looks soft, retake the photo closer to the page rather than compressing a distant shot — more of the image is then text, and it survives compression better.

Getting the best result

Crop away the table, fingers and background around a document — Crop Image does this quickly.
Hold the phone straight above the page so the text isn't skewed.
Use daylight rather than a yellow bulb; colour casts make text harder to read once compressed.
Check the minimum too. If a form asks for at least, say, 20 KB, use Resize Image with Min size filled in.
No need to convert first — JPG, PNG and WebP all go in, and a JPG always comes out.

KB, quality and what the numbers mean

The result stays below 100,000 bytes, which is under 100 KB whether a website uses 1,000 or 1,024 bytes per KB (100 × 1,024 = 102,400). Output is always JPG, the format nearly every Indian form accepts. iPhone HEIC photos aren't supported yet — set Camera → Formats → Most Compatible, or take a screenshot of the photo.

Frequently asked questions

How do I compress a JPG to 100 KB?

Add the JPG, keep Under 100 KB selected, and tap Compress to under 100 KB. The tool finds the highest JPEG quality that fits and resizes only if necessary. Download the result straight from the card.

Can I compress multiple photos to 100 KB at once?

Yes. Select up to 30 images in one go. Each is compressed separately to under 100 KB, so a large photo and a small one both end up at sensible sizes.

Should I upload my certificate as an image or a PDF?

Follow what the form asks. If it says JPG, compress the photo here. If it says PDF, convert with JPG to PDF and then compress the PDF to the required size. Mixing them up is a common reason for upload errors.

Why does the compressed photo look the same?

At 100 KB there's often enough room to keep the image close to the original. Phone cameras save far more data than a screen needs, so the extra is removed without a visible change. That's the goal.