Compress an Image to 100 KB

Need a photo or a scanned page under 100 KB? Drop it in. You get a JPG that fits the limit and still looks sharp.

How to get an image under 100 KB

  1. 1

    Choose the images

    One or up to 20 photos or scans. They stay on your device.

  2. 2

    Click Compress

    The 100 KB limit and JPG format are set. You can change both in the editor.

  3. 3

    Download

    Check the sizes and the preview, then download one image or all of them as a ZIP.

Photos and scanned documents

100 KB is a common limit for document uploads such as a scanned ID card, a mark sheet photographed with a phone, or a proof-of-address image. At this size a page of text stays readable if the scan is reasonably sharp to begin with.

For scans, crop away the table or background around the paper before compressing. Empty space still costs bytes, and removing it leaves more room for the text you need to be readable.

How the size is reached

The tool looks for the highest JPG quality that keeps the file under 100 KB. If even low quality isn't enough, it reduces the pixel dimensions step by step. You'll see the final width, height and size before you download.

If you need a PDF rather than an image, convert the compressed image with JPG to PDF, or compress an existing PDF with the PDF size tools.

Your files never leave your device

Your file is compressed on your own device, so it's never uploaded.

Many online PDF sites send your file to their servers, work on it there, and keep a copy for a while. PilotPDF does the work in your browser instead. The page loads the code it needs, and your file is opened and processed on your own device. The file itself is never sent to us, so there is no copy on our side to store, leak or delete.

Read more about how this works in our privacy-by-design explainer.

Frequently Asked Questions

Choose it above and click Compress Image. The 100 KB limit is already set. You get a JPG at or under 100 KB.
Usually yes, if the original scan is clear. Crop off the background first so more of the 100 KB goes to the text.
Yes, up to 20 images. Each one is compressed to 100 KB or less and you can download them all in one ZIP.
It isn't made bigger. You still get a clean copy with hidden camera and location details removed.
You can switch the format in the editor, but a PNG photo usually can't get under 100 KB without shrinking a lot. JPG is the better choice for photos and scans.
Compress the image here first, then use JPG to PDF. A single page made from a 100 KB JPG comes out just over 100 KB.
No. They are compressed on your device and never sent anywhere.